وَمَن جَاهَدَ فَإِنَّمَا يُجَاهِدُ لِنَفْسِهِ إِنَّ اللَّهَ لَغَنِيٌّ عَنِ الْعَالَمِينَ
[29:6]
And whoever strives hard, he strives only for his own soul; most surely Allah is Self-sufficient, above (need of) the worlds.
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.
And whosoever striveth, striveth only for himself, for lo! Allah is altogether Independent of (His) creatures.