Dr. Mustafa Khattab, the Clear Quran - Surah Al-Qiyamah, ayah 2

Translation of Surah Al-Qiyamah, ayah 2 (75:2)

وَلَآ أُقۡسِمُ بِٱلنَّفۡسِ ٱللَّوَّامَةِ ٢
And I do swear by the self-reproaching soul!