Surah Al-Qiyamah, ayah 2

75:2

وَلَآ أُقۡسِمُ بِٱلنَّفۡسِ ٱللَّوَّامَةِ ٢

Walā uqsimu bin-nafsil-lawwāmah

And I swear by the reproaching soul1800 [to the certainty of resurrection].

Footnotes

1800 i.e., that of the believer, which blames him when he falls into sin or error.