Qur'ān 6:21 · Al-An'am (الأنعام)

وَمَنْ أَظْلَمُ مِمَّنِ ٱفْتَرَىٰ عَلَى ٱللَّهِ كَذِبًا أَوْ كَذَّبَ بِـَٔايَـٰتِهِۦٓ ۗ إِنَّهُۥ لَا يُفْلِحُ ٱلظَّـٰلِمُونَ

And who is more unjust than one who invents about Allah a lie or denies His verses? Indeed, the wrongdoers will not succeed.