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Pedanius Dioscorides (Greek: Πεδάνιος Διοσκουρίδης; circa 40—90 AD) was a Greek physician, pharmacologist and botanist, the author of a 5-volume encyclopedia about herbal medicine and related medicinal substances (a pharmacopeia), that was widely read for well more than a thousand years.<br/><br/>

A native of Anazarbus, Cilicia, Asia Minor, Dioscorides practiced in Rome at the time of Nero. He was a surgeon with the army of the emperor, so he had the opportunity to travel extensively, seeking medicinal substances (plants and minerals) from all over the Roman and Greek world.<br/><br/>

This miniature painting is from a 13th century Turkish edition of Disocorides' work.<br/><br/>
From an illuminated Ottoman dua kitabi or ‘prayer book’ by Hasan Rashid  (Istanbul, 1845) once the property of a Topkapi harem lady.<br/><br/>

The Arabic term ‘du’a’ is generally translated into English as ‘prayer’, though a more exact rendering would be ‘supplication’. The term is derived from an Arabic word meaning to 'call out' or to 'summon', and Muslims regard this as a profound act of worship. This is when Muslims connect with God and ask him for forgivness or appeal for his favour. The Prophet Muhammad is reported to have said ‘Dua is the very essence of worship’, while one of Allah's commands expressed through the Qur'an is for Muslims to call out to Him: 'Call to Me; I will answer your prayers’.<br/><br/>

There is a special emphasis on du'a in Muslim spirituality and early Muslims took great care to record the supplications of Muhammad and transmit them to subsequent generations. These traditions precipitated new genres of literature in which prophetic supplications were gathered together in single volumes that were memorized, taught – and treasured.
From an illuminated Ottoman dua kitabi or ‘prayer book’ by Hasan Rashid  (Istanbul, 1845) once the property of a Topkapi harem lady. The sword of Ali, Dhū l-Fiqār or Zulfiqar, is bifurcated and considered exceptionally holy by Shia Muslims.<br/><br/>

The Arabic term ‘du’a’ is generally translated into English as ‘prayer’, though a more exact rendering would be ‘supplication’. The term is derived from an Arabic word meaning to 'call out' or to 'summon', and Muslims regard this as a profound act of worship. This is when Muslims connect with God and ask him for forgivness or appeal for his favour. The Prophet Muhammad is reported to have said ‘Dua is the very essence of worship’, while one of Allah's commands expressed through the Qur'an is for Muslims to call out to Him: 'Call to Me; I will answer your prayers’.<br/><br/>

There is a special emphasis on du'a in Muslim spirituality and early Muslims took great care to record the supplications of Muhammad and transmit them to subsequent generations. These traditions precipitated new genres of literature in which prophetic supplications were gathered together in single volumes that were memorized, taught – and treasured.
From an illuminated Ottoman dua kitabi or ‘prayer book’ by Hasan Rashid  (Istanbul, 1845) once the property of a Topkapi harem lady.<br/><br/>

The Arabic term ‘du’a’ is generally translated into English as ‘prayer’, though a more exact rendering would be ‘supplication’. The term is derived from an Arabic word meaning to 'call out' or to 'summon', and Muslims regard this as a profound act of worship. This is when Muslims connect with God and ask him for forgivness or appeal for his favour. The Prophet Muhammad is reported to have said ‘Dua is the very essence of worship’, while one of Allah's commands expressed through the Qur'an is for Muslims to call out to Him: 'Call to Me; I will answer your prayers’.<br/><br/>

There is a special emphasis on du'a in Muslim spirituality and early Muslims took great care to record the supplications of Muhammad and transmit them to subsequent generations. These traditions precipitated new genres of literature in which prophetic supplications were gathered together in single volumes that were memorized, taught – and treasured.
From an illuminated Ottoman dua kitabi or ‘prayer book’ by Hasan Rashid  (Istanbul, 1845) once the property of a Topkapi harem lady.<br/><br/>

The Arabic term ‘du’a’ is generally translated into English as ‘prayer’, though a more exact rendering would be ‘supplication’. The term is derived from an Arabic word meaning to 'call out' or to 'summon', and Muslims regard this as a profound act of worship. This is when Muslims connect with God and ask him for forgivness or appeal for his favour. The Prophet Muhammad is reported to have said ‘Dua is the very essence of worship’, while one of Allah's commands expressed through the Qur'an is for Muslims to call out to Him: 'Call to Me; I will answer your prayers’.<br/><br/>

There is a special emphasis on du'a in Muslim spirituality and early Muslims took great care to record the supplications of Muhammad and transmit them to subsequent generations. These traditions precipitated new genres of literature in which prophetic supplications were gathered together in single volumes that were memorized, taught – and treasured.
From an illuminated Ottoman dua kitabi or ‘prayer book’ by Hasan Rashid  (Istanbul, 1845) once the property of a Topkapi harem lady.<br/><br/>

The Arabic term ‘du’a’ is generally translated into English as ‘prayer’, though a more exact rendering would be ‘supplication’. The term is derived from an Arabic word meaning to 'call out' or to 'summon', and Muslims regard this as a profound act of worship. This is when Muslims connect with God and ask him for forgivness or appeal for his favour. The Prophet Muhammad is reported to have said ‘Dua is the very essence of worship’, while one of Allah's commands expressed through the Qur'an is for Muslims to call out to Him: 'Call to Me; I will answer your prayers’.<br/><br/>

There is a special emphasis on du'a in Muslim spirituality and early Muslims took great care to record the supplications of Muhammad and transmit them to subsequent generations. These traditions precipitated new genres of literature in which prophetic supplications were gathered together in single volumes that were memorized, taught – and treasured.
From an illuminated Ottoman dua kitabi or ‘prayer book’ by Hasan Rashid  (Istanbul, 1845) once the property of a Topkapi harem lady.<br/><br/>

The Arabic term ‘du’a’ is generally translated into English as ‘prayer’, though a more exact rendering would be ‘supplication’. The term is derived from an Arabic word meaning to 'call out' or to 'summon', and Muslims regard this as a profound act of worship. This is when Muslims connect with God and ask him for forgivness or appeal for his favour. The Prophet Muhammad is reported to have said ‘Dua is the very essence of worship’, while one of Allah's commands expressed through the Qur'an is for Muslims to call out to Him: 'Call to Me; I will answer your prayers’.<br/><br/>

There is a special emphasis on du'a in Muslim spirituality and early Muslims took great care to record the supplications of Muhammad and transmit them to subsequent generations. These traditions precipitated new genres of literature in which prophetic supplications were gathered together in single volumes that were memorized, taught – and treasured.
From an illuminated Ottoman dua kitabi or ‘prayer book’ by Hasan Rashid  (Istanbul, 1845) once the property of a Topkapi harem lady.<br/><br/>

The Arabic term ‘du’a’ is generally translated into English as ‘prayer’, though a more exact rendering would be ‘supplication’. The term is derived from an Arabic word meaning to 'call out' or to 'summon', and Muslims regard this as a profound act of worship. This is when Muslims connect with God and ask him for forgivness or appeal for his favour. The Prophet Muhammad is reported to have said ‘Dua is the very essence of worship’, while one of Allah's commands expressed through the Qur'an is for Muslims to call out to Him: 'Call to Me; I will answer your prayers’.<br/><br/>

There is a special emphasis on du'a in Muslim spirituality and early Muslims took great care to record the supplications of Muhammad and transmit them to subsequent generations. These traditions precipitated new genres of literature in which prophetic supplications were gathered together in single volumes that were memorized, taught – and treasured.
From an illuminated Ottoman dua kitabi or ‘prayer book’ by Hasan Rashid  (Istanbul, 1845) once the property of a Topkapi harem lady.<br/><br/>

The Arabic term ‘du’a’ is generally translated into English as ‘prayer’, though a more exact rendering would be ‘supplication’. The term is derived from an Arabic word meaning to 'call out' or to 'summon', and Muslims regard this as a profound act of worship. This is when Muslims connect with God and ask him for forgivness or appeal for his favour. The Prophet Muhammad is reported to have said ‘Dua is the very essence of worship’, while one of Allah's commands expressed through the Qur'an is for Muslims to call out to Him: 'Call to Me; I will answer your prayers’.<br/><br/>

There is a special emphasis on du'a in Muslim spirituality and early Muslims took great care to record the supplications of Muhammad and transmit them to subsequent generations. These traditions precipitated new genres of literature in which prophetic supplications were gathered together in single volumes that were memorized, taught – and treasured.
From an illuminated Ottoman dua kitabi or ‘prayer book’ by Hasan Rashid  (Istanbul, 1845) once the property of a Topkapi harem lady.<br/><br/>

The Arabic term ‘du’a’ is generally translated into English as ‘prayer’, though a more exact rendering would be ‘supplication’. The term is derived from an Arabic word meaning to 'call out' or to 'summon', and Muslims regard this as a profound act of worship. This is when Muslims connect with God and ask him for forgivness or appeal for his favour. The Prophet Muhammad is reported to have said ‘Dua is the very essence of worship’, while one of Allah's commands expressed through the Qur'an is for Muslims to call out to Him: 'Call to Me; I will answer your prayers’.<br/><br/>

There is a special emphasis on du'a in Muslim spirituality and early Muslims took great care to record the supplications of Muhammad and transmit them to subsequent generations. These traditions precipitated new genres of literature in which prophetic supplications were gathered together in single volumes that were memorized, taught – and treasured.
From an illuminated Ottoman dua kitabi or ‘prayer book’ by Hasan Rashid  (Istanbul, 1845) once the property of a Topkapi harem lady.<br/><br/>

The Arabic term ‘du’a’ is generally translated into English as ‘prayer’, though a more exact rendering would be ‘supplication’. The term is derived from an Arabic word meaning to 'call out' or to 'summon', and Muslims regard this as a profound act of worship. This is when Muslims connect with God and ask him for forgivness or appeal for his favour. The Prophet Muhammad is reported to have said ‘Dua is the very essence of worship’, while one of Allah's commands expressed through the Qur'an is for Muslims to call out to Him: 'Call to Me; I will answer your prayers’.<br/><br/>

There is a special emphasis on du'a in Muslim spirituality and early Muslims took great care to record the supplications of Muhammad and transmit them to subsequent generations. These traditions precipitated new genres of literature in which prophetic supplications were gathered together in single volumes that were memorized, taught – and treasured.
From an illuminated Ottoman dua kitabi or ‘prayer book’ by Hasan Rashid  (Istanbul, 1845) once the property of a Topkapi harem lady.<br/><br/>

The Arabic term ‘du’a’ is generally translated into English as ‘prayer’, though a more exact rendering would be ‘supplication’. The term is derived from an Arabic word meaning to 'call out' or to 'summon', and Muslims regard this as a profound act of worship. This is when Muslims connect with God and ask him for forgivness or appeal for his favour. The Prophet Muhammad is reported to have said ‘Dua is the very essence of worship’, while one of Allah's commands expressed through the Qur'an is for Muslims to call out to Him: 'Call to Me; I will answer your prayers’.<br/><br/>

There is a special emphasis on du'a in Muslim spirituality and early Muslims took great care to record the supplications of Muhammad and transmit them to subsequent generations. These traditions precipitated new genres of literature in which prophetic supplications were gathered together in single volumes that were memorized, taught – and treasured.
From an illuminated Ottoman dua kitabi or ‘prayer book’ by Hasan Rashid  (Istanbul, 1845) once the property of a Topkapi harem lady.<br/><br/>

The Arabic term ‘du’a’ is generally translated into English as ‘prayer’, though a more exact rendering would be ‘supplication’. The term is derived from an Arabic word meaning to 'call out' or to 'summon', and Muslims regard this as a profound act of worship. This is when Muslims connect with God and ask him for forgivness or appeal for his favour. The Prophet Muhammad is reported to have said ‘Dua is the very essence of worship’, while one of Allah's commands expressed through the Qur'an is for Muslims to call out to Him: 'Call to Me; I will answer your prayers’.<br/><br/>

There is a special emphasis on du'a in Muslim spirituality and early Muslims took great care to record the supplications of Muhammad and transmit them to subsequent generations. These traditions precipitated new genres of literature in which prophetic supplications were gathered together in single volumes that were memorized, taught – and treasured.
From an illuminated Ottoman dua kitabi or ‘prayer book’ by Hasan Rashid  (Istanbul, 1845) once the property of a Topkapi harem lady.<br/><br/>

The Arabic term ‘du’a’ is generally translated into English as ‘prayer’, though a more exact rendering would be ‘supplication’. The term is derived from an Arabic word meaning to 'call out' or to 'summon', and Muslims regard this as a profound act of worship. This is when Muslims connect with God and ask him for forgivness or appeal for his favour. The Prophet Muhammad is reported to have said ‘Dua is the very essence of worship’, while one of Allah's commands expressed through the Qur'an is for Muslims to call out to Him: 'Call to Me; I will answer your prayers’.<br/><br/>

There is a special emphasis on du'a in Muslim spirituality and early Muslims took great care to record the supplications of Muhammad and transmit them to subsequent generations. These traditions precipitated new genres of literature in which prophetic supplications were gathered together in single volumes that were memorized, taught – and treasured.
From an illuminated Ottoman dua kitabi or ‘prayer book’ by Hasan Rashid  (Istanbul, 1845) once the property of a Topkapi harem lady. The footprint of Muhammad is said to be the impression of a foot upon a square fragment of calcareous stone. It is believed to be that of Muhammad, indented by him at the moment he was assisting the masons to raise a heavy stone for the building of the Ka'aba. According to another tradition it was made when Muhammad placed his left foot in the stirrup of the celestial mount Buraq.<br/><br/>

The Arabic term ‘du’a’ is generally translated into English as ‘prayer’, though a more exact rendering would be ‘supplication’. The term is derived from an Arabic word meaning to 'call out' or to 'summon', and Muslims regard this as a profound act of worship. This is when Muslims connect with God and ask him for forgivness or appeal for his favour. The Prophet Muhammad is reported to have said ‘Dua is the very essence of worship’, while one of Allah's commands expressed through the Qur'an is for Muslims to call out to Him: 'Call to Me; I will answer your prayers’.<br/><br/>

There is a special emphasis on du'a in Muslim spirituality and early Muslims took great care to record the supplications of Muhammad and transmit them to subsequent generations. These traditions precipitated new genres of literature in which prophetic supplications were gathered together in single volumes that were memorized, taught – and treasured.
From an illuminated Ottoman dua kitabi or ‘prayer book’ by Hasan Rashid  (Istanbul, 1845) once the property of a Topkapi harem lady.<br/><br/>

The Arabic term ‘du’a’ is generally translated into English as ‘prayer’, though a more exact rendering would be ‘supplication’. The term is derived from an Arabic word meaning to 'call out' or to 'summon', and Muslims regard this as a profound act of worship. This is when Muslims connect with God and ask him for forgivness or appeal for his favour. The Prophet Muhammad is reported to have said ‘Dua is the very essence of worship’, while one of Allah's commands expressed through the Qur'an is for Muslims to call out to Him: 'Call to Me; I will answer your prayers’.<br/><br/>

There is a special emphasis on du'a in Muslim spirituality and early Muslims took great care to record the supplications of Muhammad and transmit them to subsequent generations. These traditions precipitated new genres of literature in which prophetic supplications were gathered together in single volumes that were memorized, taught – and treasured.
From an illuminated Ottoman dua kitabi or ‘prayer book’ by Hasan Rashid  (Istanbul, 1845) once the property of a Topkapi harem lady.<br/><br/>

The Arabic term ‘du’a’ is generally translated into English as ‘prayer’, though a more exact rendering would be ‘supplication’. The term is derived from an Arabic word meaning to 'call out' or to 'summon', and Muslims regard this as a profound act of worship. This is when Muslims connect with God and ask him for forgivness or appeal for his favour. The Prophet Muhammad is reported to have said ‘Dua is the very essence of worship’, while one of Allah's commands expressed through the Qur'an is for Muslims to call out to Him: 'Call to Me; I will answer your prayers’.<br/><br/>

There is a special emphasis on du'a in Muslim spirituality and early Muslims took great care to record the supplications of Muhammad and transmit them to subsequent generations. These traditions precipitated new genres of literature in which prophetic supplications were gathered together in single volumes that were memorized, taught – and treasured.
From an illuminated Ottoman dua kitabi or ‘prayer book’ by Hasan Rashid  (Istanbul, 1845) once the property of a Topkapi harem lady.<br/><br/>

The Arabic term ‘du’a’ is generally translated into English as ‘prayer’, though a more exact rendering would be ‘supplication’. The term is derived from an Arabic word meaning to 'call out' or to 'summon', and Muslims regard this as a profound act of worship. This is when Muslims connect with God and ask him for forgivness or appeal for his favour. The Prophet Muhammad is reported to have said ‘Dua is the very essence of worship’, while one of Allah's commands expressed through the Qur'an is for Muslims to call out to Him: 'Call to Me; I will answer your prayers’.<br/><br/>

There is a special emphasis on du'a in Muslim spirituality and early Muslims took great care to record the supplications of Muhammad and transmit them to subsequent generations. These traditions precipitated new genres of literature in which prophetic supplications were gathered together in single volumes that were memorized, taught – and treasured.
From an illuminated Ottoman dua kitabi or ‘prayer book’ by Hasan Rashid  (Istanbul, 1845) once the property of a Topkapi harem lady.<br/><br/>

The Arabic term ‘du’a’ is generally translated into English as ‘prayer’, though a more exact rendering would be ‘supplication’. The term is derived from an Arabic word meaning to 'call out' or to 'summon', and Muslims regard this as a profound act of worship. This is when Muslims connect with God and ask him for forgivness or appeal for his favour. The Prophet Muhammad is reported to have said ‘Dua is the very essence of worship’, while one of Allah's commands expressed through the Qur'an is for Muslims to call out to Him: 'Call to Me; I will answer your prayers’.<br/><br/>

There is a special emphasis on du'a in Muslim spirituality and early Muslims took great care to record the supplications of Muhammad and transmit them to subsequent generations. These traditions precipitated new genres of literature in which prophetic supplications were gathered together in single volumes that were memorized, taught – and treasured.
From an illuminated Ottoman dua kitabi or ‘prayer book’ by Hasan Rashid  (Istanbul, 1845) once the property of a Topkapi harem lady.<br/><br/>

The Arabic term ‘du’a’ is generally translated into English as ‘prayer’, though a more exact rendering would be ‘supplication’. The term is derived from an Arabic word meaning to 'call out' or to 'summon', and Muslims regard this as a profound act of worship. This is when Muslims connect with God and ask him for forgivness or appeal for his favour. The Prophet Muhammad is reported to have said ‘Dua is the very essence of worship’, while one of Allah's commands expressed through the Qur'an is for Muslims to call out to Him: 'Call to Me; I will answer your prayers’.<br/><br/>

There is a special emphasis on du'a in Muslim spirituality and early Muslims took great care to record the supplications of Muhammad and transmit them to subsequent generations. These traditions precipitated new genres of literature in which prophetic supplications were gathered together in single volumes that were memorized, taught – and treasured.
From an illuminated Ottoman dua kitabi or ‘prayer book’ by Hasan Rashid  (Istanbul, 1845) once the property of a Topkapi harem lady.<br/><br/>

The Arabic term ‘du’a’ is generally translated into English as ‘prayer’, though a more exact rendering would be ‘supplication’. The term is derived from an Arabic word meaning to 'call out' or to 'summon', and Muslims regard this as a profound act of worship. This is when Muslims connect with God and ask him for forgivness or appeal for his favour. The Prophet Muhammad is reported to have said ‘Dua is the very essence of worship’, while one of Allah's commands expressed through the Qur'an is for Muslims to call out to Him: 'Call to Me; I will answer your prayers’.<br/><br/>

There is a special emphasis on du'a in Muslim spirituality and early Muslims took great care to record the supplications of Muhammad and transmit them to subsequent generations. These traditions precipitated new genres of literature in which prophetic supplications were gathered together in single volumes that were memorized, taught – and treasured.
From an illuminated Ottoman dua kitabi or ‘prayer book’ by Hasan Rashid  (Istanbul, 1845) once the property of a Topkapi harem lady.<br/><br/>

The Arabic term ‘du’a’ is generally translated into English as ‘prayer’, though a more exact rendering would be ‘supplication’. The term is derived from an Arabic word meaning to 'call out' or to 'summon', and Muslims regard this as a profound act of worship. This is when Muslims connect with God and ask him for forgivness or appeal for his favour. The Prophet Muhammad is reported to have said ‘Dua is the very essence of worship’, while one of Allah's commands expressed through the Qur'an is for Muslims to call out to Him: 'Call to Me; I will answer your prayers’.<br/><br/>

There is a special emphasis on du'a in Muslim spirituality and early Muslims took great care to record the supplications of Muhammad and transmit them to subsequent generations. These traditions precipitated new genres of literature in which prophetic supplications were gathered together in single volumes that were memorized, taught – and treasured.
From an illuminated Ottoman dua kitabi or ‘prayer book’ by Hasan Rashid  (Istanbul, 1845) once the property of a Topkapi harem lady.<br/><br/>

The Arabic term ‘du’a’ is generally translated into English as ‘prayer’, though a more exact rendering would be ‘supplication’. The term is derived from an Arabic word meaning to 'call out' or to 'summon', and Muslims regard this as a profound act of worship. This is when Muslims connect with God and ask him for forgivness or appeal for his favour. The Prophet Muhammad is reported to have said ‘Dua is the very essence of worship’, while one of Allah's commands expressed through the Qur'an is for Muslims to call out to Him: 'Call to Me; I will answer your prayers’.<br/><br/>

There is a special emphasis on du'a in Muslim spirituality and early Muslims took great care to record the supplications of Muhammad and transmit them to subsequent generations. These traditions precipitated new genres of literature in which prophetic supplications were gathered together in single volumes that were memorized, taught – and treasured.
From an illuminated Ottoman dua kitabi or ‘prayer book’ by Hasan Rashid  (Istanbul, 1845) once the property of a Topkapi harem lady.<br/><br/>

The Arabic term ‘du’a’ is generally translated into English as ‘prayer’, though a more exact rendering would be ‘supplication’. The term is derived from an Arabic word meaning to 'call out' or to 'summon', and Muslims regard this as a profound act of worship. This is when Muslims connect with God and ask him for forgivness or appeal for his favour. The Prophet Muhammad is reported to have said ‘Dua is the very essence of worship’, while one of Allah's commands expressed through the Qur'an is for Muslims to call out to Him: 'Call to Me; I will answer your prayers’.<br/><br/>

There is a special emphasis on du'a in Muslim spirituality and early Muslims took great care to record the supplications of Muhammad and transmit them to subsequent generations. These traditions precipitated new genres of literature in which prophetic supplications were gathered together in single volumes that were memorized, taught – and treasured.
From an illuminated Ottoman dua kitabi or ‘prayer book’ by Hasan Rashid  (Istanbul, 1845) once the property of a Topkapi harem lady.<br/><br/>

The Arabic term ‘du’a’ is generally translated into English as ‘prayer’, though a more exact rendering would be ‘supplication’. The term is derived from an Arabic word meaning to 'call out' or to 'summon', and Muslims regard this as a profound act of worship. This is when Muslims connect with God and ask him for forgivness or appeal for his favour. The Prophet Muhammad is reported to have said ‘Dua is the very essence of worship’, while one of Allah's commands expressed through the Qur'an is for Muslims to call out to Him: 'Call to Me; I will answer your prayers’.<br/><br/>

There is a special emphasis on du'a in Muslim spirituality and early Muslims took great care to record the supplications of Muhammad and transmit them to subsequent generations. These traditions precipitated new genres of literature in which prophetic supplications were gathered together in single volumes that were memorized, taught – and treasured.
From an illuminated Ottoman dua kitabi or ‘prayer book’ by Hasan Rashid  (Istanbul, 1845) once the property of a Topkapi harem lady.<br/><br/>

The Arabic term ‘du’a’ is generally translated into English as ‘prayer’, though a more exact rendering would be ‘supplication’. The term is derived from an Arabic word meaning to 'call out' or to 'summon', and Muslims regard this as a profound act of worship. This is when Muslims connect with God and ask him for forgivness or appeal for his favour. The Prophet Muhammad is reported to have said ‘Dua is the very essence of worship’, while one of Allah's commands expressed through the Qur'an is for Muslims to call out to Him: 'Call to Me; I will answer your prayers’.<br/><br/>

There is a special emphasis on du'a in Muslim spirituality and early Muslims took great care to record the supplications of Muhammad and transmit them to subsequent generations. These traditions precipitated new genres of literature in which prophetic supplications were gathered together in single volumes that were memorized, taught – and treasured.
From an illuminated Ottoman dua kitabi or ‘prayer book’ by Hasan Rashid  (Istanbul, 1845) once the property of a Topkapi harem lady.<br/><br/>

The Arabic term ‘du’a’ is generally translated into English as ‘prayer’, though a more exact rendering would be ‘supplication’. The term is derived from an Arabic word meaning to 'call out' or to 'summon', and Muslims regard this as a profound act of worship. This is when Muslims connect with God and ask him for forgivness or appeal for his favour. The Prophet Muhammad is reported to have said ‘Dua is the very essence of worship’, while one of Allah's commands expressed through the Qur'an is for Muslims to call out to Him: 'Call to Me; I will answer your prayers’.<br/><br/>

There is a special emphasis on du'a in Muslim spirituality and early Muslims took great care to record the supplications of Muhammad and transmit them to subsequent generations. These traditions precipitated new genres of literature in which prophetic supplications were gathered together in single volumes that were memorized, taught – and treasured.
From an illuminated Ottoman dua kitabi or ‘prayer book’ by Hasan Rashid  (Istanbul, 1845) once the property of a Topkapi harem lady.<br/><br/>

The Arabic term ‘du’a’ is generally translated into English as ‘prayer’, though a more exact rendering would be ‘supplication’. The term is derived from an Arabic word meaning to 'call out' or to 'summon', and Muslims regard this as a profound act of worship. This is when Muslims connect with God and ask him for forgivness or appeal for his favour. The Prophet Muhammad is reported to have said ‘Dua is the very essence of worship’, while one of Allah's commands expressed through the Qur'an is for Muslims to call out to Him: 'Call to Me; I will answer your prayers’.<br/><br/>

There is a special emphasis on du'a in Muslim spirituality and early Muslims took great care to record the supplications of Muhammad and transmit them to subsequent generations. These traditions precipitated new genres of literature in which prophetic supplications were gathered together in single volumes that were memorized, taught – and treasured.
Pedanius Dioscorides (Greek: Πεδάνιος Διοσκουρίδης; circa 40—90 AD) was a Greek physician, pharmacologist and botanist, the author of a 5-volume encyclopedia about herbal medicine and related medicinal substances (a pharmacopeia), that was widely read for well more than a thousand years.<br/><br/>

A native of Anazarbus, Cilicia, Asia Minor, Dioscorides practiced in Rome at the time of Nero. He was a surgeon with the army of the emperor, so he had the opportunity to travel extensively, seeking medicinal substances (plants and minerals) from all over the Roman and Greek world.<br/><br/>

This miniature painting is from a 13th century Turkish edition of Disocorides' work.
From an illuminated Ottoman dua kitabi or ‘prayer book’ by Hasan Rashid  (Istanbul, 1845) once the property of a Topkapi harem lady.<br/><br/>

The Arabic term ‘du’a’ is generally translated into English as ‘prayer’, though a more exact rendering would be ‘supplication’. The term is derived from an Arabic word meaning to 'call out' or to 'summon', and Muslims regard this as a profound act of worship. This is when Muslims connect with God and ask him for forgivness or appeal for his favour. The Prophet Muhammad is reported to have said ‘Dua is the very essence of worship’, while one of Allah's commands expressed through the Qur'an is for Muslims to call out to Him: 'Call to Me; I will answer your prayers’.<br/><br/>

There is a special emphasis on du'a in Muslim spirituality and early Muslims took great care to record the supplications of Muhammad and transmit them to subsequent generations. These traditions precipitated new genres of literature in which prophetic supplications were gathered together in single volumes that were memorized, taught – and treasured.
From an illuminated Ottoman dua kitabi or ‘prayer book’ by Hasan Rashid  (Istanbul, 1845) once the property of a Topkapi harem lady.<br/><br/>

The Arabic term ‘du’a’ is generally translated into English as ‘prayer’, though a more exact rendering would be ‘supplication’. The term is derived from an Arabic word meaning to 'call out' or to 'summon', and Muslims regard this as a profound act of worship. This is when Muslims connect with God and ask him for forgivness or appeal for his favour. The Prophet Muhammad is reported to have said ‘Dua is the very essence of worship’, while one of Allah's commands expressed through the Qur'an is for Muslims to call out to Him: 'Call to Me; I will answer your prayers’.<br/><br/>

There is a special emphasis on du'a in Muslim spirituality and early Muslims took great care to record the supplications of Muhammad and transmit them to subsequent generations. These traditions precipitated new genres of literature in which prophetic supplications were gathered together in single volumes that were memorized, taught – and treasured.
From an illuminated Ottoman dua kitabi or ‘prayer book’ by Hasan Rashid  (Istanbul, 1845) once the property of a Topkapi harem lady.<br/><br/>

The Arabic term ‘du’a’ is generally translated into English as ‘prayer’, though a more exact rendering would be ‘supplication’. The term is derived from an Arabic word meaning to 'call out' or to 'summon', and Muslims regard this as a profound act of worship. This is when Muslims connect with God and ask him for forgivness or appeal for his favour. The Prophet Muhammad is reported to have said ‘Dua is the very essence of worship’, while one of Allah's commands expressed through the Qur'an is for Muslims to call out to Him: 'Call to Me; I will answer your prayers’.<br/><br/>

There is a special emphasis on du'a in Muslim spirituality and early Muslims took great care to record the supplications of Muhammad and transmit them to subsequent generations. These traditions precipitated new genres of literature in which prophetic supplications were gathered together in single volumes that were memorized, taught – and treasured.
From an illuminated Ottoman dua kitabi or ‘prayer book’ by Hasan Rashid  (Istanbul, 1845) once the property of a Topkapi harem lady.<br/><br/>

The Arabic term ‘du’a’ is generally translated into English as ‘prayer’, though a more exact rendering would be ‘supplication’. The term is derived from an Arabic word meaning to 'call out' or to 'summon', and Muslims regard this as a profound act of worship. This is when Muslims connect with God and ask him for forgivness or appeal for his favour. The Prophet Muhammad is reported to have said ‘Dua is the very essence of worship’, while one of Allah's commands expressed through the Qur'an is for Muslims to call out to Him: 'Call to Me; I will answer your prayers’.<br/><br/>

There is a special emphasis on du'a in Muslim spirituality and early Muslims took great care to record the supplications of Muhammad and transmit them to subsequent generations. These traditions precipitated new genres of literature in which prophetic supplications were gathered together in single volumes that were memorized, taught – and treasured.
From an illuminated Ottoman dua kitabi or ‘prayer book’ by Hasan Rashid  (Istanbul, 1845) once the property of a Topkapi harem lady.<br/><br/>

The Arabic term ‘du’a’ is generally translated into English as ‘prayer’, though a more exact rendering would be ‘supplication’. The term is derived from an Arabic word meaning to 'call out' or to 'summon', and Muslims regard this as a profound act of worship. This is when Muslims connect with God and ask him for forgivness or appeal for his favour. The Prophet Muhammad is reported to have said ‘Dua is the very essence of worship’, while one of Allah's commands expressed through the Qur'an is for Muslims to call out to Him: 'Call to Me; I will answer your prayers’.<br/><br/>

There is a special emphasis on du'a in Muslim spirituality and early Muslims took great care to record the supplications of Muhammad and transmit them to subsequent generations. These traditions precipitated new genres of literature in which prophetic supplications were gathered together in single volumes that were memorized, taught – and treasured.
From an illuminated Ottoman dua kitabi or ‘prayer book’ by Hasan Rashid  (Istanbul, 1845) once the property of a Topkapi harem lady.<br/><br/>

The Arabic term ‘du’a’ is generally translated into English as ‘prayer’, though a more exact rendering would be ‘supplication’. The term is derived from an Arabic word meaning to 'call out' or to 'summon', and Muslims regard this as a profound act of worship. This is when Muslims connect with God and ask him for forgivness or appeal for his favour. The Prophet Muhammad is reported to have said ‘Dua is the very essence of worship’, while one of Allah's commands expressed through the Qur'an is for Muslims to call out to Him: 'Call to Me; I will answer your prayers’.<br/><br/>

There is a special emphasis on du'a in Muslim spirituality and early Muslims took great care to record the supplications of Muhammad and transmit them to subsequent generations. These traditions precipitated new genres of literature in which prophetic supplications were gathered together in single volumes that were memorized, taught – and treasured.
From an illuminated Ottoman dua kitabi or ‘prayer book’ by Hasan Rashid  (Istanbul, 1845) once the property of a Topkapi harem lady.<br/><br/>

The Arabic term ‘du’a’ is generally translated into English as ‘prayer’, though a more exact rendering would be ‘supplication’. The term is derived from an Arabic word meaning to 'call out' or to 'summon', and Muslims regard this as a profound act of worship. This is when Muslims connect with God and ask him for forgivness or appeal for his favour. The Prophet Muhammad is reported to have said ‘Dua is the very essence of worship’, while one of Allah's commands expressed through the Qur'an is for Muslims to call out to Him: 'Call to Me; I will answer your prayers’.<br/><br/>

There is a special emphasis on du'a in Muslim spirituality and early Muslims took great care to record the supplications of Muhammad and transmit them to subsequent generations. These traditions precipitated new genres of literature in which prophetic supplications were gathered together in single volumes that were memorized, taught – and treasured.
From an illuminated Ottoman dua kitabi or ‘prayer book’ by Hasan Rashid  (Istanbul, 1845) once the property of a Topkapi harem lady.<br/><br/>

The Arabic term ‘du’a’ is generally translated into English as ‘prayer’, though a more exact rendering would be ‘supplication’. The term is derived from an Arabic word meaning to 'call out' or to 'summon', and Muslims regard this as a profound act of worship. This is when Muslims connect with God and ask him for forgivness or appeal for his favour. The Prophet Muhammad is reported to have said ‘Dua is the very essence of worship’, while one of Allah's commands expressed through the Qur'an is for Muslims to call out to Him: 'Call to Me; I will answer your prayers’.<br/><br/>

There is a special emphasis on du'a in Muslim spirituality and early Muslims took great care to record the supplications of Muhammad and transmit them to subsequent generations. These traditions precipitated new genres of literature in which prophetic supplications were gathered together in single volumes that were memorized, taught – and treasured.
From an illuminated Ottoman dua kitabi or ‘prayer book’ by Hasan Rashid  (Istanbul, 1845) once the property of a Topkapi harem lady.<br/><br/>

The Arabic term ‘du’a’ is generally translated into English as ‘prayer’, though a more exact rendering would be ‘supplication’. The term is derived from an Arabic word meaning to 'call out' or to 'summon', and Muslims regard this as a profound act of worship. This is when Muslims connect with God and ask him for forgivness or appeal for his favour. The Prophet Muhammad is reported to have said ‘Dua is the very essence of worship’, while one of Allah's commands expressed through the Qur'an is for Muslims to call out to Him: 'Call to Me; I will answer your prayers’.<br/><br/>

There is a special emphasis on du'a in Muslim spirituality and early Muslims took great care to record the supplications of Muhammad and transmit them to subsequent generations. These traditions precipitated new genres of literature in which prophetic supplications were gathered together in single volumes that were memorized, taught – and treasured.
From an illuminated Ottoman dua kitabi or ‘prayer book’ by Hasan Rashid  (Istanbul, 1845) once the property of a Topkapi harem lady.<br/><br/>

The Arabic term ‘du’a’ is generally translated into English as ‘prayer’, though a more exact rendering would be ‘supplication’. The term is derived from an Arabic word meaning to 'call out' or to 'summon', and Muslims regard this as a profound act of worship. This is when Muslims connect with God and ask him for forgivness or appeal for his favour. The Prophet Muhammad is reported to have said ‘Dua is the very essence of worship’, while one of Allah's commands expressed through the Qur'an is for Muslims to call out to Him: 'Call to Me; I will answer your prayers’.<br/><br/>

There is a special emphasis on du'a in Muslim spirituality and early Muslims took great care to record the supplications of Muhammad and transmit them to subsequent generations. These traditions precipitated new genres of literature in which prophetic supplications were gathered together in single volumes that were memorized, taught – and treasured.
From an illuminated Ottoman dua kitabi or ‘prayer book’ by Hasan Rashid  (Istanbul, 1845) once the property of a Topkapi harem lady.<br/><br/>

The Arabic term ‘du’a’ is generally translated into English as ‘prayer’, though a more exact rendering would be ‘supplication’. The term is derived from an Arabic word meaning to 'call out' or to 'summon', and Muslims regard this as a profound act of worship. This is when Muslims connect with God and ask him for forgivness or appeal for his favour. The Prophet Muhammad is reported to have said ‘Dua is the very essence of worship’, while one of Allah's commands expressed through the Qur'an is for Muslims to call out to Him: 'Call to Me; I will answer your prayers’.<br/><br/>

There is a special emphasis on du'a in Muslim spirituality and early Muslims took great care to record the supplications of Muhammad and transmit them to subsequent generations. These traditions precipitated new genres of literature in which prophetic supplications were gathered together in single volumes that were memorized, taught – and treasured.
Pedanius Dioscorides (Greek: Πεδάνιος Διοσκουρίδης; circa 40—90 AD) was a Greek physician, pharmacologist and botanist, the author of a 5-volume encyclopedia about herbal medicine and related medicinal substances (a pharmacopeia), that was widely read for well more than a thousand years.<br/><br/>

A native of Anazarbus, Cilicia, Asia Minor, Dioscorides practiced in Rome at the time of Nero. He was a surgeon with the army of the emperor, so he had the opportunity to travel extensively, seeking medicinal substances (plants and minerals) from all over the Roman and Greek world.<br/><br/>

This miniature painting is from a 13th century Turkish edition of Disocorides' work.
From an illuminated Ottoman dua kitabi or ‘prayer book’ by Hasan Rashid  (Istanbul, 1845) once the property of a Topkapi harem lady.<br/><br/>

The Arabic term ‘du’a’ is generally translated into English as ‘prayer’, though a more exact rendering would be ‘supplication’. The term is derived from an Arabic word meaning to 'call out' or to 'summon', and Muslims regard this as a profound act of worship. This is when Muslims connect with God and ask him for forgivness or appeal for his favour. The Prophet Muhammad is reported to have said ‘Dua is the very essence of worship’, while one of Allah's commands expressed through the Qur'an is for Muslims to call out to Him: 'Call to Me; I will answer your prayers’.<br/><br/>

There is a special emphasis on du'a in Muslim spirituality and early Muslims took great care to record the supplications of Muhammad and transmit them to subsequent generations. These traditions precipitated new genres of literature in which prophetic supplications were gathered together in single volumes that were memorized, taught – and treasured.
From an illuminated Ottoman dua kitabi or ‘prayer book’ by Hasan Rashid  (Istanbul, 1845) once the property of a Topkapi harem lady.<br/><br/>

The Arabic term ‘du’a’ is generally translated into English as ‘prayer’, though a more exact rendering would be ‘supplication’. The term is derived from an Arabic word meaning to 'call out' or to 'summon', and Muslims regard this as a profound act of worship. This is when Muslims connect with God and ask him for forgivness or appeal for his favour. The Prophet Muhammad is reported to have said ‘Dua is the very essence of worship’, while one of Allah's commands expressed through the Qur'an is for Muslims to call out to Him: 'Call to Me; I will answer your prayers’.<br/><br/>

There is a special emphasis on du'a in Muslim spirituality and early Muslims took great care to record the supplications of Muhammad and transmit them to subsequent generations. These traditions precipitated new genres of literature in which prophetic supplications were gathered together in single volumes that were memorized, taught – and treasured.
From an illuminated Ottoman dua kitabi or ‘prayer book’ by Hasan Rashid  (Istanbul, 1845) once the property of a Topkapi harem lady.<br/><br/>

The Arabic term ‘du’a’ is generally translated into English as ‘prayer’, though a more exact rendering would be ‘supplication’. The term is derived from an Arabic word meaning to 'call out' or to 'summon', and Muslims regard this as a profound act of worship. This is when Muslims connect with God and ask him for forgivness or appeal for his favour. The Prophet Muhammad is reported to have said ‘Dua is the very essence of worship’, while one of Allah's commands expressed through the Qur'an is for Muslims to call out to Him: 'Call to Me; I will answer your prayers’.<br/><br/>

There is a special emphasis on du'a in Muslim spirituality and early Muslims took great care to record the supplications of Muhammad and transmit them to subsequent generations. These traditions precipitated new genres of literature in which prophetic supplications were gathered together in single volumes that were memorized, taught – and treasured.
From an illuminated Ottoman dua kitabi or ‘prayer book’ by Hasan Rashid  (Istanbul, 1845) once the property of a Topkapi harem lady.<br/><br/>

The Arabic term ‘du’a’ is generally translated into English as ‘prayer’, though a more exact rendering would be ‘supplication’. The term is derived from an Arabic word meaning to 'call out' or to 'summon', and Muslims regard this as a profound act of worship. This is when Muslims connect with God and ask him for forgivness or appeal for his favour. The Prophet Muhammad is reported to have said ‘Dua is the very essence of worship’, while one of Allah's commands expressed through the Qur'an is for Muslims to call out to Him: 'Call to Me; I will answer your prayers’.<br/><br/>

There is a special emphasis on du'a in Muslim spirituality and early Muslims took great care to record the supplications of Muhammad and transmit them to subsequent generations. These traditions precipitated new genres of literature in which prophetic supplications were gathered together in single volumes that were memorized, taught – and treasured.
From an illuminated Ottoman dua kitabi or ‘prayer book’ by Hasan Rashid  (Istanbul, 1845) once the property of a Topkapi harem lady.<br/><br/>

The Arabic term ‘du’a’ is generally translated into English as ‘prayer’, though a more exact rendering would be ‘supplication’. The term is derived from an Arabic word meaning to 'call out' or to 'summon', and Muslims regard this as a profound act of worship. This is when Muslims connect with God and ask him for forgivness or appeal for his favour. The Prophet Muhammad is reported to have said ‘Dua is the very essence of worship’, while one of Allah's commands expressed through the Qur'an is for Muslims to call out to Him: 'Call to Me; I will answer your prayers’.<br/><br/>

There is a special emphasis on du'a in Muslim spirituality and early Muslims took great care to record the supplications of Muhammad and transmit them to subsequent generations. These traditions precipitated new genres of literature in which prophetic supplications were gathered together in single volumes that were memorized, taught – and treasured.
From an illuminated Ottoman dua kitabi or ‘prayer book’ by Hasan Rashid  (Istanbul, 1845) once the property of a Topkapi harem lady.<br/><br/>

The Arabic term ‘du’a’ is generally translated into English as ‘prayer’, though a more exact rendering would be ‘supplication’. The term is derived from an Arabic word meaning to 'call out' or to 'summon', and Muslims regard this as a profound act of worship. This is when Muslims connect with God and ask him for forgivness or appeal for his favour. The Prophet Muhammad is reported to have said ‘Dua is the very essence of worship’, while one of Allah's commands expressed through the Qur'an is for Muslims to call out to Him: 'Call to Me; I will answer your prayers’.<br/><br/>

There is a special emphasis on du'a in Muslim spirituality and early Muslims took great care to record the supplications of Muhammad and transmit them to subsequent generations. These traditions precipitated new genres of literature in which prophetic supplications were gathered together in single volumes that were memorized, taught – and treasured.
From an illuminated Ottoman dua kitabi or ‘prayer book’ by Hasan Rashid  (Istanbul, 1845) once the property of a Topkapi harem lady.<br/><br/>

The Arabic term ‘du’a’ is generally translated into English as ‘prayer’, though a more exact rendering would be ‘supplication’. The term is derived from an Arabic word meaning to 'call out' or to 'summon', and Muslims regard this as a profound act of worship. This is when Muslims connect with God and ask him for forgivness or appeal for his favour. The Prophet Muhammad is reported to have said ‘Dua is the very essence of worship’, while one of Allah's commands expressed through the Qur'an is for Muslims to call out to Him: 'Call to Me; I will answer your prayers’.<br/><br/>

There is a special emphasis on du'a in Muslim spirituality and early Muslims took great care to record the supplications of Muhammad and transmit them to subsequent generations. These traditions precipitated new genres of literature in which prophetic supplications were gathered together in single volumes that were memorized, taught – and treasured.
From an illuminated Ottoman dua kitabi or ‘prayer book’ by Hasan Rashid  (Istanbul, 1845) once the property of a Topkapi harem lady.<br/><br/>

The Arabic term ‘du’a’ is generally translated into English as ‘prayer’, though a more exact rendering would be ‘supplication’. The term is derived from an Arabic word meaning to 'call out' or to 'summon', and Muslims regard this as a profound act of worship. This is when Muslims connect with God and ask him for forgivness or appeal for his favour. The Prophet Muhammad is reported to have said ‘Dua is the very essence of worship’, while one of Allah's commands expressed through the Qur'an is for Muslims to call out to Him: 'Call to Me; I will answer your prayers’.<br/><br/>

There is a special emphasis on du'a in Muslim spirituality and early Muslims took great care to record the supplications of Muhammad and transmit them to subsequent generations. These traditions precipitated new genres of literature in which prophetic supplications were gathered together in single volumes that were memorized, taught – and treasured.
From an illuminated Ottoman dua kitabi or ‘prayer book’ by Hasan Rashid  (Istanbul, 1845) once the property of a Topkapi harem lady.<br/><br/>

The Arabic term ‘du’a’ is generally translated into English as ‘prayer’, though a more exact rendering would be ‘supplication’. The term is derived from an Arabic word meaning to 'call out' or to 'summon', and Muslims regard this as a profound act of worship. This is when Muslims connect with God and ask him for forgivness or appeal for his favour. The Prophet Muhammad is reported to have said ‘Dua is the very essence of worship’, while one of Allah's commands expressed through the Qur'an is for Muslims to call out to Him: 'Call to Me; I will answer your prayers’.<br/><br/>

There is a special emphasis on du'a in Muslim spirituality and early Muslims took great care to record the supplications of Muhammad and transmit them to subsequent generations. These traditions precipitated new genres of literature in which prophetic supplications were gathered together in single volumes that were memorized, taught – and treasured.
From an illuminated Ottoman dua kitabi or ‘prayer book’ by Hasan Rashid  (Istanbul, 1845) once the property of a Topkapi harem lady.<br/><br/>

The Arabic term ‘du’a’ is generally translated into English as ‘prayer’, though a more exact rendering would be ‘supplication’. The term is derived from an Arabic word meaning to 'call out' or to 'summon', and Muslims regard this as a profound act of worship. This is when Muslims connect with God and ask him for forgivness or appeal for his favour. The Prophet Muhammad is reported to have said ‘Dua is the very essence of worship’, while one of Allah's commands expressed through the Qur'an is for Muslims to call out to Him: 'Call to Me; I will answer your prayers’.<br/><br/>

There is a special emphasis on du'a in Muslim spirituality and early Muslims took great care to record the supplications of Muhammad and transmit them to subsequent generations. These traditions precipitated new genres of literature in which prophetic supplications were gathered together in single volumes that were memorized, taught – and treasured.
From an illuminated Ottoman dua kitabi or ‘prayer book’ by Hasan Rashid  (Istanbul, 1845) once the property of a Topkapi harem lady.<br/><br/>

The Arabic term ‘du’a’ is generally translated into English as ‘prayer’, though a more exact rendering would be ‘supplication’. The term is derived from an Arabic word meaning to 'call out' or to 'summon', and Muslims regard this as a profound act of worship. This is when Muslims connect with God and ask him for forgivness or appeal for his favour. The Prophet Muhammad is reported to have said ‘Dua is the very essence of worship’, while one of Allah's commands expressed through the Qur'an is for Muslims to call out to Him: 'Call to Me; I will answer your prayers’.<br/><br/>

There is a special emphasis on du'a in Muslim spirituality and early Muslims took great care to record the supplications of Muhammad and transmit them to subsequent generations. These traditions precipitated new genres of literature in which prophetic supplications were gathered together in single volumes that were memorized, taught – and treasured.
From an illuminated Ottoman dua kitabi or ‘prayer book’ by Hasan Rashid  (Istanbul, 1845) once the property of a Topkapi harem lady.<br/><br/>

The Arabic term ‘du’a’ is generally translated into English as ‘prayer’, though a more exact rendering would be ‘supplication’. The term is derived from an Arabic word meaning to 'call out' or to 'summon', and Muslims regard this as a profound act of worship. This is when Muslims connect with God and ask him for forgivness or appeal for his favour. The Prophet Muhammad is reported to have said ‘Dua is the very essence of worship’, while one of Allah's commands expressed through the Qur'an is for Muslims to call out to Him: 'Call to Me; I will answer your prayers’.<br/><br/>

There is a special emphasis on du'a in Muslim spirituality and early Muslims took great care to record the supplications of Muhammad and transmit them to subsequent generations. These traditions precipitated new genres of literature in which prophetic supplications were gathered together in single volumes that were memorized, taught – and treasured.
From an illuminated Ottoman dua kitabi or ‘prayer book’ by Hasan Rashid  (Istanbul, 1845) once the property of a Topkapi harem lady.<br/><br/>

The Arabic term ‘du’a’ is generally translated into English as ‘prayer’, though a more exact rendering would be ‘supplication’. The term is derived from an Arabic word meaning to 'call out' or to 'summon', and Muslims regard this as a profound act of worship. This is when Muslims connect with God and ask him for forgivness or appeal for his favour. The Prophet Muhammad is reported to have said ‘Dua is the very essence of worship’, while one of Allah's commands expressed through the Qur'an is for Muslims to call out to Him: 'Call to Me; I will answer your prayers’.<br/><br/>

There is a special emphasis on du'a in Muslim spirituality and early Muslims took great care to record the supplications of Muhammad and transmit them to subsequent generations. These traditions precipitated new genres of literature in which prophetic supplications were gathered together in single volumes that were memorized, taught – and treasured.
From an illuminated Ottoman dua kitabi or ‘prayer book’ by Hasan Rashid  (Istanbul, 1845) once the property of a Topkapi harem lady.<br/><br/>

The Arabic term ‘du’a’ is generally translated into English as ‘prayer’, though a more exact rendering would be ‘supplication’. The term is derived from an Arabic word meaning to 'call out' or to 'summon', and Muslims regard this as a profound act of worship. This is when Muslims connect with God and ask him for forgivness or appeal for his favour. The Prophet Muhammad is reported to have said ‘Dua is the very essence of worship’, while one of Allah's commands expressed through the Qur'an is for Muslims to call out to Him: 'Call to Me; I will answer your prayers’.<br/><br/>

There is a special emphasis on du'a in Muslim spirituality and early Muslims took great care to record the supplications of Muhammad and transmit them to subsequent generations. These traditions precipitated new genres of literature in which prophetic supplications were gathered together in single volumes that were memorized, taught – and treasured.