Qur'an 45:15

مَنْ عَمِلَ صَـٰلِحًا فَلِنَفْسِهِۦ ۖ وَمَنْ أَسَآءَ فَعَلَيْهَا ۖ ثُمَّ إِلَىٰ رَبِّكُمْ تُرْجَعُونَ

“Whoever does a good deed - it is for himself; and whoever does evil - it is against it [i.e., the self or soul]. Then to your Lord you will be returned.”

Al-Jaathiya 45:15 · Saheeh International