Quran 29:6 from Surah Al-Ankaboot on Divine Marvels.
وَمَن جَٰهَدَ فَإِنَّمَا يُجَٰهِدُ لِنَفۡسِهِۦٓۚ إِنَّ ٱللَّهَ لَغَنِيٌّ عَنِ ٱلۡعَٰلَمِينَ
English translation: And whoever strives then only he strives for himself Indeed Allah (is) Free from need of the worlds
Transliteration: waman jahada fa-innama yujahidu linafsihi inna al-laha laghaniyyun ani al-'alamina