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 by some.
Some of the negative reaction is undoubtedly due to its radicalness...
It is an alleged 7th century original of the edition of the third caliph Uthman.
This Quran is located in the small Telyashayakh mosque in Tashkent. Puin's initial study of ancient Quran manuscripts found in Yemen led him to conclude that the Quran is a "cocktail of texts", some of which may have been existent a hundred years before Muhammad.
Many, but not all, scholars accept the accuracy of these biographies, though their accuracy is unascertainable.
After Ibn Ishaq, there are a number of shorter accounts (some of which are earlier than Ibn Ishaq) recorded in different forms (see List of earliest writers of sīra).
It was generally acknowledged that the work of Crone and Cook was a fresh approach in its reconstruction of early Islamic history, but their alternative account of early Islam had been almost universally rejected.Paleography has dated the San'a manuscripts to 690-750 AD.The parchment of the Birmingham Quran manuscript received radiocarbon analysis in 2015, which revealed with a 95.4% accuracy that it was made from an animal alive sometime between 568 and 645 AD, roughly around the lifetime of Muhammad.But where the accepted facts are consciously put upside down, their approach is disastrous." R. Serjeant stated: "Hagarism [the thesis of Crone and Cook]..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’." In 2006 Fred Donner, a supporter of the revisionist school of Islamic studies wrote that "Yet now more than 30 years later we can see that the publication of Hagarism was a milestone in the study of Islamic studies." The Samarkand Kufic Quran, dated to the early 9th century.