Quran 75:2 from Surah Al-Qiyaama on Divine Marvels.
وَلَآ أُقۡسِمُ بِٱلنَّفۡسِ ٱللَّوَّامَةِ
English translation: And nay! I swear by the soul self-accusing
Transliteration: wala uq'simu bil-nafsi al-lawamati