Surah Al-Qasas — Ayah 16 (28:16)
قَالَ رَبِّ إِنِّي ظَلَمۡتُ نَفۡسِي فَٱغۡفِرۡ لِي فَغَفَرَ لَهُۥٓۚ إِنَّهُۥ هُوَ ٱلۡغَفُورُ ٱلرَّحِيمُ ١٦
English translation (Saheeh International)
He said, "My Lord, indeed I have wronged myself, so forgive me," and He forgave him. Indeed, He is the Forgiving, the Merciful.
Brief commentary
Beseeching his Lord and acknowledging his action, Moses said, “O my Lord! I have wronged myself by killing this Copt, so forgive my sin.” So Allah forgave him; indeed He Forgiving to whoever repents from His servants and merciful towards them.