In the Muslimâs Scholar, codificationâs history and difference of mushaf is a historical fact which must be honestly revealed without having any purpose to demolish fundamental doctrine of Islam on the qurâanic authenticities. This study revealed that Mushaf Uthmani beganfrom the second codification at the period of and by Uthman ibn Affan, meant as an effort to the uniformity of mushaf among Muslim communities. The second codification did not simply copy Abu Bakarâs mushaf which was represented as the result of the first codification, but also completing it with the sentences which are not yet recorded. The second codification was followed up by Uthman by releasing policy which obliged the use of mushaf Uthmani as single mushaf. However, this policy did not at once wipe out non-Uthmaniâs mushaf, and did not lessen Qurâanic authenticities.Keywords: Codification of Alqurâan, Mushaf Uthmani, Standardization, Authenticity.