Surah Yunus, ayah 72

10:72

فَإِن تَوَلَّيۡتُمۡ فَمَا سَأَلۡتُكُم مِّنۡ أَجۡرٍۖ إِنۡ أَجۡرِيَ إِلَّا عَلَى ٱللَّهِۖ وَأُمِرۡتُ أَنۡ أَكُونَ مِنَ ٱلۡمُسۡلِمِينَ ٧٢

Fa in tawallaytum famā sa'altukum min ajrin in ajriya illā 'alallāhi wa umirtu an akūna minal-muslimīn

And if you turn away [from my advice] - then no payment have I asked of you. My reward is only from Allāh, and I have been commanded to be of the Muslims [i.e., those who submit to Allāh]."