Surah Al-'Ankabut 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.

Translation: Saheeh International

Tafsir

And whoever struggles in war or against the temptations of his own soul struggles only for his own sake because the benefits to be reaped from his struggle will be for his sake and not for God’s. …

Excerpt from Tafsir al-Jalalayn, commentary on 29:6, via Quran.com. The reader has the full commentary and 9 more tafsirs.