Historical authenticity of the Qur'an

Main article:Historicity of Muhammad# Authenticity of the Qur'an

See also:Origin and development of the Qur'an

Most Muslims believe that the Qur'an is the literal word of God as recited to Muhammad through the angel Gabrial. Muhammad, according to tradition, recited perfectly what the angel Gabriel revealed to him for his companions to write down and memorize. Muslims hold that the wording of the Qur'anic text available today corresponds exactly to that revealed to Muhammad in the years 610–632.

John Wansborugh believes that the Qu’ran is a redaction in part of other sacred scriptures, in particular the Judaeo- Christian scriptures.In their book hagarism:the making of Islamic World ,Patricia Crone and Michael Cook challenge the traditional account of how the Qur'an was compiled, writing that "there is no hard evidence for the existence of the Koran in any form before the last decade of the seventh century." They also question the accuracy of some of the Qur'an's historical accounts. For example, professor Gerd R.Puin's study of ancient Qur'an manuscripts led him to conclude that the Qur'an is a "cocktail of texts", some of which may have been present a hundred years before Muhammad.

Qur'an from the 9th century.
It is an alleged 7th century original of Uthman's edition

Herbert Berg writes that "Despite John Wansbrough's very cautious and careful inclusion of qualifications such as 'conjectural,' and 'tentative and emphatically provisional', his work is condemned. Some of the negative reaction is undoubtedly due to its radicalness... Wansbrough's work has been embraced wholeheartedly by few and has been employed in a piecemeal fashion by many. Many praise his insights and methods, if not all of his conclusions." It is generally acknowledged that the work of Crone and Cook was a fresh approach in its reconstruction of early Islamic history, but the theory has been almost universally rejected. Van Ess has dismissed it stating that "a refutation is perhaps unnecessary since the authors make no effort to prove it in detail...Where they are only giving a new interpretation of well-known facts, this is not decisive. But where the accepted facts are consciously put upside down, their approach is disastrous." R. B. Sergeant states that "[Crone and Cook's thesis]… is not only bitterly anti-Islamic in tone, but anti-Arabian. Its superficial fancies are so ridiculous that at first one wonders if it is just a ‘leg pull’, pure ’spoof’." Francis Edwars peters states that "Few have failed to be convinced that what is in our copy of the Quran is, in fact, what Muhammad taught, and is expressed in his own words"

In 2006, legal scholar Liaquat Ali Khan claimed that Crone and Cook later explicitly disavowed their earlier book. Patricia Crone in an article published in 2006 provided an update on the evolution of her conceptions since the printing of the thesis in 1976. In the article she acknowledges that Muhammad existed as a historical figure and that the Quran represents "utterances" of his that he believed to be revelations. However she states that the Qur'an may not be the complete record of the revelations. She also accepts that oral histories and Muslim historical accounts cannot be totally discounted, but remains skeptical about the traditional account of the Hijrah and the standard view that Muhammad and his tribe were based in Mecca. She describes the difficulty in the handling of the hadith because of their "amorphous nature" and purpose as documentary evidence for deriving religious law rather than as historical narratives.

A Christian Arab named Al-Kindi claimed that the narratives in the Qur'an were "all jumbled together and intermingled" and that this was "an evidence that many different hands have been at work therein, and caused discrepancies, adding or cutting out whatever they liked or disliked" Bell and Watt suggested that the variation in writing style throughout the Qur'an, which sometimes involves the use of rhyming, may have indicated revisions to the text during its compilation. They claimed that there were "abrupt changes in the length of verses; sudden changes of the dramatic situation, with changes of pronoun from singular to plural, from second to third person, and so on" At the same time, however, they noted that "[i]f any great changes by way of addition, suppression or alteration had been made, controversy would almost certainly have arisen; but of that there is little trace." They also note that "Modern study of the Qur'an has not in fact raised any serious question of its authenticity. The style varies, but is almost unmistakable. So clearly does the whole bear the stamp of uniformity that doubts of its genuineness hardly arise."