The subject of the orientalists' views and assumptions about the Qur'an especially attracted my attention during the early 1990s when I had been engaged in writing the Strat al-Nabt and the Orientalists. 1 It soon became clear that the major part of their assumptions and remarks about the Prophet are aimed directly or indirectly against the Qur'an, which fact goes only to confirm the Qur'anic statement at 6:33 (al-'An'am): 0 J~ ....Ui ..:...~ ~ ~l1.ll .:.fJ J di y.~ 'Y ~u "So in fact they cry lies not to you [i. e., the Prophet]; but the transgressors do at Allah's 'qyahs (revelations) hurl rejection." Subsequently, early in 1999, my attention was drawn to an article written by Toby Lester under caption "What is the Koran" and published in the January 1999 issue of the Atlantic Monthfy. It was a sort of heavyweight journalistic writing publicising the views of Gerd-R Puin regarding the Qur'an based on his examination of some Qur'anic manuscripts lately discovered at San'a', together with the views of some other orientalists. I wrote a review of that article which was published as a booklet under caption: The Qur'an and the Latest Orienta/is! Assumptions.2 In the following year I presented a paper (in Arabic) on the orientalists' assumptions about the Qur'an at a seminar on Qur'anic studies and sciences, organised by the ·King Fahd Qur'an Printing Complex and held at Madina between 30 September and 3 October 2000.3 A revised English version of this paper was published in 2002 as another booklet under caption :The Qur'an and the Orientalists: A Brief Suroey of Their Assumptions.4 In the preface to this latter booklet I mentioned that the subject needed a more detailed treatment. The present work is an attempt in this direction. As I started organizing the work I realized that some of the chapters in the Strat al-Nabf and the Orientalists on the themes of the Prophet's alleged preparation for giving out the Qur'an, his alleged borrowing from Judaism and Christianity 1 M. M. Ali, Sirat ai-Nabi and the Orientalist.r, with special referrnce to the writing.r of William Muir, D.S. Margolioutb and W. Montgomery Watt, vols. 1A and 1B, King Fahd Qur'an Printing Complex, Madina, 1997. 2 Published by ]am'iat If!yaa' Minhaaj ai-Sunnah, Ipswich, June, 1999. ' Published by the King Fahd Qur'an Printing Complex, Madina, under caption : ~_,5:)1 0T_,.il1 J_,.- .:.' _r..:-)1 rl-" 4 Published by Jam'iat If!yaa' Minhaaj ai-Sunnah, Ipswich, June, 2002. book, in pdf format, written by Muhammad Mehr Ali, which is one of the most prominent and important messages that spoke about the problem of the writing of Muhammad peace be upon him to the Holy Quran, and the author explained this suspicion and responded to them, and clarified the objectives of promoters. The author has divided the suspicion into several axes, the axis of which is: Is Mohammed A Koran? The other point is: Did Muhammad borrowed the Qur'an from other nations? Does the reader have mistakes? And other important topics. The author then presents to us the views of some orientalists in the Quranic revelation, such as Margalith, Muir, Richard Bell, and others. Here, many theories and opinions of the orientalists refute us, as well as the Orientalists'