Al-Ankaboot (29:6)
وَمَن جَـٰهَدَ فَإِنَّمَا یُجَـٰهِدُ لِنَفۡسِهِۦۤۚ إِنَّ ٱللَّهَ لَغَنِیٌّ عَنِ ٱلۡعَـٰلَمِینَ
And whosoever striveth, striveth only for himself, for lo! Allah is altogether Independent of (His) creatures.
— Mohammed Marmaduke William Pickthall
Wa man jaahada fainnamaa yujaahidu linafsih; innal laaha laghaniyyun 'anil 'aalameen