"the original of the letter was discovered in 1858 by Monsieur Etienne Barthelemy, member of a French expedition, in a monastery in Egypt and is now carefully preserved in Constantinople. Several photographs of the letter have since been published. The first one was published in the well-known Egyptian newspaper Al-Hilal in November 1904" Muhammad Zafrulla Khan, Muhammad: Seal of the Prophets, Routledge & Kegan Paul, London, 1980 (chapter 12). The drawing of the letter published in Al-Hilal was reproduced in David Samuel Margoliouth, Mohammed and the Rise of Islam, London (1905), p. 365, which is the source of this image.
"the original of the letter was discovered in 1858 by Monsieur Etienne Barthelemy, member of a French expedition, in a monastery in Egypt and is now carefully preserved in Constantinople. Several photographs of the letter have since been published. The first one was published in the well-known Egyptian newspaper Al-Hilal in November 1904" Muhammad Zafrulla Khan, Muhammad: Seal of the Prophets, Routledge & Kegan Paul, London, 1980 (chapter 12). The drawing of the letter published in Al-Hilal was reproduced in David Samuel Margoliouth, Mohammed and the Rise of Islam, London (1905), p. 365, which is the source of this image.
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Kisra, M. Morony, The Encyclopaedia of Islam, Vol. V, ed. C.E. Bosworth, E. van Donzel, B. Lewis and C. Pellat, (E.J.Brill, 1980), 185.[1] （页面存档备份，存于互联网档案馆）
Kisra, M. Morony, The Encyclopaedia of Islam, Vol. V, ed. C.E. Bosworth, E. van Donzel, B. Lewis and C. Pellat, (E.J.Brill, 1980), 185.[1] （页面存档备份，存于互联网档案馆）
