Surah Adh-Dhariyat, ayah 54

فَتَوَلَّ عَنۡهُمۡ فَمَآ أَنتَ بِمَلُومٖ ٥٤

Fatawalla 'anhum famā anta bimalūm

So leave them, [O Muḥammad], for you are not to be blamed.