Qur'an 29:6
وَمَن جَـٰهَدَ فَإِنَّمَا يُجَـٰهِدُ لِنَفْسِهِۦٓ ۚ إِنَّ ٱللَّهَ لَغَنِىٌّ عَنِ ٱلْعَـٰلَمِينَ
“And whoever strives only strives for [the benefit of] himself. Indeed, Allāh is Free from need of the worlds.”
Al-Ankaboot 29:6 · Saheeh International