Distortion (Tahrif) is a factor which can cause damage to the authenticity of any credible book or word. The accusation of distortion against the Holy Qur'an is in the same line whether one likes it or not. If we fail to prove the integrity (undistortability) of the Holy Qur'an, it will face a challenge in terms of validity and any reference to it will suffer an underlying problem. Some of these doubts posed by Orientalists about the Qur'an like Mr Nöldeke.
This descriptive-analytical study seeks to answer the question whether some words and verses have been removed from the Qur'an. In this article, about four pieces of doubts have been presented regarding distortion. Citing some weak and sometimes fake hadiths that are mostly in some unreliable Sunni sources, as well some weak hadiths taken from a few Shiite ones and lack of understanding of the proportion and the meaning of some verses of the Qur'an and the material used by some narrative, interpretive, and historical sources have led to the emergence of these false assumptions made by Nolde and other scholars. Their opinions and doubts has seriously criticized in this study by the same sources and methods and disregard the true meaning of the verses, narratives, and some technical terms.