قُلْ مَا سَأَلْتُكُم مِّنْ أَجْرٍ فَهُوَ لَكُمْ ۖ إِنْ أَجْرِىَ إِلَّا عَلَى ٱللَّهِ ۖ وَهُوَ عَلَىٰ كُلِّ شَىْءٍ شَهِيدٌ
Say, ‘Whatever reward I may have asked you is for your own good. My [true] reward lies only with Allah, and He is witness to all things.’