Surah Al-Kahf Verse 77 - English Translation by Ali Unal
Surah Al-Kahfفَٱنطَلَقَا حَتَّىٰٓ إِذَآ أَتَيَآ أَهۡلَ قَرۡيَةٍ ٱسۡتَطۡعَمَآ أَهۡلَهَا فَأَبَوۡاْ أَن يُضَيِّفُوهُمَا فَوَجَدَا فِيهَا جِدَارٗا يُرِيدُ أَن يَنقَضَّ فَأَقَامَهُۥۖ قَالَ لَوۡ شِئۡتَ لَتَّخَذۡتَ عَلَيۡهِ أَجۡرٗا
So they went on until when they came upon the people of a township, they asked its people for food, but they refused them hospitality. They found there a wall which was on the verge of tumbling down, and he (al-Khadr) restored it. (Moses) said: "If you had wished, you could have taken payment for it