فَٱنطَلَقَا حَتَّىٰٓ إِذَآ أَتَيَآ أَهْلَ قَرْيَةٍ ٱسْتَطْعَمَآ أَهْلَهَا فَأَبَوْا۟ أَن يُضَيِّفُوهُمَا فَوَجَدَا فِيهَا جِدَارًا يُرِيدُ أَن يَنقَضَّ فَأَقَامَهُۥ ۖ قَالَ لَوْ شِئْتَ لَتَّخَذْتَ عَلَيْهِ أَجْرًا
fa-inṭalaqā ḥattā idhā atayā ahla qaryatin is'taṭʿamā ahlahā fa-abaw an yuḍayyifūhumā fawajadā fīhā jidāran yurīdu an yanqaḍḍa fa-aqāmahu qāla law shi'ta lattakhadhta ʿalayhi ajran
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."
— Saheeh International
And so they travelled on. Then, when they came to a town and asked the inhabitants for food but were refused hospitality, they saw a wall there that was on the point of falling down and the man repaired it. Moses said, ‘But if you had wished you could have taken payment for doing that.’
— M. A. S. Abdel Haleem
Then they both proceeded, till, when they came to the people of a town, they asked them for food, but they refused to entertain them. Then they found therein a wall about to collapse and he (Khidr) set it up straight. [Mûsâ (Moses)] said: If you had wished, surely, you could have taken wages for it!"
— Muhammad Muhsin Khan & Muhammad Taqi-ud-Din al-Hilali