قُلْ مَا أَسْأَلُكُمْ عَلَيْهِ مِنْ أَجْرٍ إِلَّا مَن شَاءَ أَن يَتَّخِذَ إِلَىٰ رَبِّهِ سَبِيلًا (57)
(25:57) Tell them, "I do not ask of you any recompense for this work: I only ask of the one, who will, to adopt the way of his Lord.
71a. For explanation, see E.N. 70 of Al-Mu'minun.