Al-Káhf 18:77 فانطلقا حتى اذا اتيا اهل قرية استطعما اهلها فابوا ان يضيفوهما فوجدا فيها جدارا يريد ان ينقض فاقامه قال لو شيت لاتخذت عليه اجرا ٧٧

So they set out, until when they came to the people of a town, they asked its people for food, but they refused to offer them hospitality. And they found therein a wall about to collapse, so he [i.e., al-Khiḍr] restored it. [Moses] said, "If you wished, you could have taken for it a payment."