Muhammad's failure to even authentic any of the versions of the quran his followers were attempting to compile.

When muhammad died, there was no single source of any scriptures of the quran. No written records, not even one single memorizers.

http://inthenameofallah.org/

http://the-koran.blogspot.com/

http://www.youtube.com/AhmadsQuran3

http://www.amazon.com/Lifting-Veil-Faces-Muhammad-Islam/dp/1434392023

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