Volume 4, Book 56, Number 709:
Narrated Anas:
Uthman called Zaid bin Thabit, Abdullah bin Az-Zubair, Said bin Al-‘As and ‘AbdurRahman bin
Al-Harith bin Hisham, and then they wrote the manuscripts of the Holy Qur’an in the form of book
in several copies. ‘Uthman said to the three Quraishi persons. ” If you differ with Zaid bin Thabit on
any point of the Quran, then write it in the language of Quraish, as the Quran was revealed in their
language.” So they acted accordingly. (Said bin Thabit was an Ansari and not from Quraish ).