Surah Al-Qiyamah 75:2

وَلَآ أُقْسِمُ بِٱلنَّفْسِ ٱللَّوَّامَةِ

And I swear by the reproaching soul [to the certainty of resurrection].

Translation: Saheeh International

Tafsir

And nay I swear by the self-reproaching soul the one that reproaches itself even if it should expend great effort in being virtuous the response to the oath has been omitted that is to say la-tub‘athunna ‘you shall indeed be resurrected!’ as indicated by what follows

Excerpt from Tafsir al-Jalalayn, commentary on 75:2, via Quran.com. The reader has the full commentary and 9 more tafsirs.