Surah Al-Ahzab 33:8

لِّيَسْـَٔلَ ٱلصَّـٰدِقِينَ عَن صِدْقِهِمْ ۚ وَأَعَدَّ لِلْكَـٰفِرِينَ عَذَابًا أَلِيمًا

That He may question the truthful about their truth. And He has prepared for the disbelievers a painful punishment.

Translation: Saheeh International

Tafsir

that He God may question the truthful about their truthfulness in delivering the Message as a way thereby to justifiably reproach the disbelievers; and He exalted be He has prepared for those who disbelieve in them a painful chastisement ‘adhāban alīman is a supplement to akhadhnā ‘We took’.

Excerpt from Tafsir al-Jalalayn, commentary on 33:8, via Quran.com. The reader has the full commentary and 9 more tafsirs.