Surah Al-Ankabut Verse 6

وَمَنْ جَاهَدَ فَإِنَّمَا يُجَاهِدُ لِنَفْسِهِ ۚ إِنَّ اللَّهَ لَغَنِيٌّ عَنِ الْعَالَمِينَ

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