Quran 29:6

وَمَن جَٰهَدَ فَإِنَّمَا يُجَٰهِدُ لِنَفْسِهِۦٓ ۚ إِنَّ ٱللَّهَ لَغَنِىٌّ عَنِ ٱلْعَٰلَمِينَ

And whoever strives only strives for [the benefit of] himself. Indeed, Allah is free from need of the worlds.

Translation · Saheeh International