The inimitability of the Qur'an (I'jaz)

أَوَلَمْ يَكْفِهِمْ أَنَّآ أَنزَلْنَا عَلَيْكَ ٱلْكِتَـٰبَ يُتْلَىٰ عَلَيْهِمْ ۚ إِنَّ فِى ذَٰلِكَ لَرَحْمَةً وَذِكْرَىٰ لِقَوْمٍ يُؤْمِنُونَ

And is it not sufficient for them that We revealed to you the Book [i.e., the Qur’ān] which is recited to them? Indeed in that is a mercy and reminder for a people who believe.