Is it true that the variation in Quranic readings, such as: (فإن الله الغني الحميد) "Indeed, Allah is the Rich, the Praiseworthy" and (فإن الله هو الغني الحميد) "Indeed, Allah - He is the Rich, the Praiseworthy," is due to the Mushafs being written with a mixture of the seven ahruf, or the writing of the two frequently recited harfs in different Mushafs to ensure the transmission of the largest number of ahruf, along with the writing of the Qurashi harf in cases where they differed?

A Muslim must safeguard their religion and the soundness of their heart from doubts, and they must seek religious knowledge to strengthen their faith. It is not permissible for someone who is not armed with religious knowledge to debate with atheists.

The explanation for the variations in the orthography of the Uthmanic Mushafs is that they are all the word of Allah, and the differences in them are minor and typically involve a single letter that does not affect the meaning. It is possible that this was intended to highlight some of the seven ahruf (modes of recitation) in which the Quran was revealed. Furthermore, the goal was to establish the various qira'at (readings) within a single language. Each Mushaf was written according to a specific riwayah (narration), and all of them are derived from the original compiled by Uthman (may Allah be pleased with him).