Surah Al-Mu'minun, Verse 96

ٱدۡفَعۡ بِٱلَّتِي هِيَ أَحۡسَنُ ٱلسَّيِّئَةَۚ نَحۡنُ أَعۡلَمُ بِمَا يَصِفُونَ٩٦

id'faʿ bi-allatī hiya aḥsanu l-sayi-ata naḥnu aʿlamu bimā yaṣifūna

Repel, by [means of] what is best, [their] evil. We are most knowing of what they describe.