وَقَالَ ٱلَّذِينَ كَفَرُوٓا۟ إِنْ هَـٰذَآ إِلَّآ إِفْكٌ ٱفْتَرَىٰهُ وَأَعَانَهُۥ عَلَيْهِ قَوْمٌ ءَاخَرُونَ ۖ فَقَدْ جَآءُو ظُلْمًۭا وَزُورًۭا

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

— Al-Furqān 25:4