Surah As-Sajdah 32:29

قُلْ يَوْمَ ٱلْفَتْحِ لَا يَنفَعُ ٱلَّذِينَ كَفَرُوٓا۟ إِيمَـٰنُهُمْ وَلَا هُمْ يُنظَرُونَ

Say, [O Muḥammad], "On the Day of Conquest the belief of those who had disbelieved will not benefit them, nor will they be reprieved."

Translation: Saheeh International

Tafsir

Say ‘On the day of this Judgement which will be effected by sending the chastisement on them their newly found faith then shall not benefit those who had been disbelievers nor shall they be given respite to make repentance or offer excuses.

Excerpt from Tafsir al-Jalalayn, commentary on 32:29, via Quran.com. The reader has the full commentary and 9 more tafsirs.