He said, "My Lord, indeed I have wronged myself, so forgive me," (28:16)

Almuntakhab Fi Tafsir Alquran Alkarim

And he invoked Allahs mercy and forgiveness: O Allah, my Creator, he prayed: I have wronged my own soul. Forgive me O Allah and have mercy on me. Allah forgave him and extended to him His mercy; He is AL-Ghafur (the Forgiving), and AL-Rahim (The Merciful)

Tafseer Tafheem-ul-Quran by Syed Abu-al-A'la Maududi

(28:16) Then he said, *23 "O my Lord, I have sinned against myself, so forgive me. " So, Allah forgave him: He is the All-Forgiving, the All-Merciful. *24

He said, "My Lord, indeed I have wronged myself, so forgive me," meaning

*23) What the Prophet Moses meant by this prayer was: "O my Lord, forgive this sin of mine, which you know I have not committed wilfully, and also cover and conceal it from the people."
*24) This has two meanings and both are implied here: Allah pardoned Moses' error as well as concealed his sin from the people so that neither any Egyptian nor any official of the Egyptian government passed that way at that time that he might witness the incident. So, the Prophet Moses got an opportunity to escape undetected from the place of the occurrence of murder.
 

He said, "My Lord, indeed I have wronged myself, so forgive me," meaning in Urdu

پھر وہ کہنے لگا "اے میرے رب، مَیں نے اپنے نفس پر بڑا ظلم کر ڈالا، میری مغفرت فرما دے" چنانچہ اللہ نے اس کی مغفرت فرما دی، وہ غفور رحیم ہے