Surah Al-Kahf Verse 77 - English Translation by Maududi
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
Then the two went forth until when they came to a town, they asked its people for food, but they refused to play host to them. They found in that town a wall that was on the verge of tumbling down, and he buttressed it, whereupon Moses said: "If you had wished, you could have received payment for it