وَمَن جَٰهَدَ فَإِنَّمَا يُجَٰهِدُ لِنَفۡسِهِۦٓۚ إِنَّ ٱللَّهَ لَغَنِيٌّ عَنِ ٱلۡعَٰلَمِينَ

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.

— Al-Ankabut (ٱلْعَنْكَبُوت), 29:6