Intention and motivation

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.