Surah Al-Hajj 22:68

وَإِن جَـٰدَلُوكَ فَقُلِ ٱللَّهُ أَعْلَمُ بِمَا تَعْمَلُونَ

And if they dispute with you, then say, "Allāh is most knowing of what you do.

Translation: Saheeh International

Tafsir

And if they dispute with you in the matter of religion say ‘God knows best what you do and will requite you for it — this was revealed before the command to fight them.

Excerpt from Tafsir al-Jalalayn, commentary on 22:68, via Quran.com. The reader has the full commentary and 9 more tafsirs.