Say, "Whatever payment I might have asked of you - it is yours. My payment is only from Allah, and He is, over all things, Witness."
The Saheeh International Quran Translation
قُلْ مَا سَأَلْتُكُم مِّنْ أَجْرٍ فَهُوَ لَكُمْ إِنْ أَجْرِىَ إِلَّا عَلَى ٱللَّهِ وَهُوَ عَلَىٰ كُلِّ شَىْءٍ شَهِيدٌSay, "Whatever payment I might have asked of you - it is yours. My payment is only from Allah, and He is, over all things, Witness."