Orthodox Muslims insist that no changes have occurred to the Koran since the Uthmanic recension. But this view is challenged by the Sa'na manuscripts, which date from shortly after the Uthmanic recension. "There are dialectal and phonetical variations that don't make any sense in the text", says Puin.

Where is the original Quran kept?

The Topkapi manuscript is an early manuscript of the Quran dated to the early 8th century. It is kept in the Topkapi Palace Museum, Istanbul, Turkey.

Are there any mistakes in the Quran?

In 2020 article a Saudi website published an article claiming that while most Muslims believe the text established by third caliph 'Uthman bin 'Affan "is sacred and must not be amended", there were are some 2500 "errors of spelling, syntax and grammar" within it.