«The Book of the Qur'an» by Hafiz Abu Bakr Ibn Abi Dawud al-Sijistani (230/844 - 316/928). The author, (son of the hadith collector Abu Dawud) is a book about the collection of the Qur'an. It deals with many issues related to the Holy Qur'an: its writing, the date of its collection, the names of the scribes of the revelation, the compilation of the Qur'an after the death of the Prophet, and other related studies, such as the Text of the Uthmani Qur'an, Qur'ans of the companions...