وَقالَ الَّذينَ كَفَروا إِن هـٰذا إِلّا إِفكٌ افتَراهُ وَأَعانَهُ عَلَيهِ قَومٌ آخَرونَ ۖ فَقَد جاءوا ظُلمًا وَزورًا

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.