29:6
وَمَن جَٰهَدَ فَإِنَّمَا يُجَٰهِدُ لِنَفْسِهِۦٓ ۚ إِنَّ ٱللَّهَ لَغَنِىٌّ عَنِ ٱلْعَٰلَمِينَ
Wa man jaahada fainnamaa yujaahidu linafsih; innal laaha laghaniyyun 'anil 'aalameen
And if any strive (with might and main), they do so for their own souls: for Allah is free of all needs from all creation.