Repel, by [means of] what is best, [their] evil. We are most knowing of what they describe.
The Saheeh International Quran Translation
ٱدْفَعْ بِٱلَّتِى هِىَ أَحْسَنُ ٱلسَّيِّئَةَ نَحْنُ أَعْلَمُ بِمَا يَصِفُونَRepel, by [means of] what is best, [their] evil. We are most knowing of what they describe.