The Miraculous Nature of the Qur'an

وَقَالَ ٱلَّذِينَ كَفَرُوٓا۟ إِنْ هَـٰذَآ إِلَّآ إِفْكٌ ٱفْتَرَىٰهُ وَأَعَانَهُۥ عَلَيْهِ قَوْمٌ ءَاخَرُونَ ۖ فَقَدْ جَآءُو ظُلْمًا وَزُورًا

And those who disbelieve say, "This [Qur’ān] is not except a falsehood he invented, and another people assisted him in it." But they have committed an injustice and a lie.

إِنَّ عَلَيْنَا جَمْعَهُۥ وَقُرْءَانَهُۥ

Indeed, upon Us is its collection [in your heart] and [to make possible] its recitation.