18:77
فَ ٱنطَلَقَ ا حَتَّىٰٓ إِذَآ أَتَيَ آ أَهْلَ قَرْيَةٍ ٱسْتَطْعَمَ آ أَهْلَ هَا فَ أَبَ وْا۟ أَن يُضَيِّفُ و هُمَا فَ وَجَدَ ا فِي هَا جِدَارًا يُرِيدُ أَن يَنقَضَّ فَ أَقَامَ هُۥ قَالَ لَوْ شِئْ تَ لَ تَّخَذْ تَ عَلَيْ هِ أَجْرًا
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 al-Khidh r restored it. [Moses] said, "If you wished, you could have taken for it a payment."