Protecting the Qur'an from distortion according to the scholars of the two sects based on the verse of memorization

The issue of distorting the Qur'an is one of the discussions which was mentioned at the top (third and fourth century) among Islamic scholars.Fortunately, the general scholars of the sects believe that this heavenly version is safe from any theft; and to prove this fact, they have provided many reasons from the Qur'an, narrations, historical evidence, human experience, etc.In this article, we intend to achieve this truth only from the perspective of the”hifz” verse (Al-Hijr / 9) based on the opinion of Shiite and Sunni commentators. The strong and similar appearance of the text of this Qur'anic verse testifies to the inviolability of the Qur'an from distortionl; however, some researchers have said something contrary to this strong appearance and have created room for doubt.There is no doubt. The present research has been done by descriptive-analytical method and using library resources.What is important and key in the verse under discussion is that this seemingly strong verse testifies to the immunity of the Qur'an from distortion, and what has been raised by skepticism and doubt in this sense by a few scholars is all contrary to the appearance of the text. There is no doubt. The present research has been done by descriptive-analytical method and using library resources.