Surah Fussilat, Verse 46
مَّنْ عَمِلَ صَٰلِحًۭا فَلِنَفْسِهِۦ ۖ وَمَنْ أَسَآءَ فَعَلَيْهَا ۗ وَمَا رَبُّكَ بِظَلَّٰمٍۢ لِّلْعَبِيدِ
Translation — Sahih International
Whoever does righteousness - it is for his [own] soul; and whoever does evil [does so] against it. And your Lord is not ever unjust to [His] servants.
Source
Kur'an-ı Kerim, Fussilet Suresi 41:46
https://kuran.diyanet.gov.tr/mushaf/kuran-meal-2/41-suresi-46-ayet