Surat Al Kahf (77-78)

{فَانطَلَقَا حَتَّى إِذَا أَتَيَا أَهْلَ قَرْيَةٍ اسْتَطْعَمَا أَهْلَهَا فَأَبَوْا أَن يُضَيِّفُوهُمَا فَوَجَدَا فِيهَا جِدَاراً يُرِيدُ أَنْ يَنقَضَّ فَأَقَامَهُ قَالَ لَوْ شِئْتَ لَاتَّخَذْتَ عَلَيْهِ أَجْراً} (الكهف: 77)

77- They walked until they reached a village, seeking for hospitality, but their people refused to feed them as they were misers. They found a skew wall that was about to fall, but Al Khadir made it straight with his hand.

Moses said to him: They are people whom we asked for food, but they refused and you build their wall?! You should take a wage for that.

{قَالَ هَذَا فِرَاقُ بَيْنِي وَبَيْنِكَ سَأُنَبِّئُكَ بِتَأْوِيلِ مَا لَمْ تَسْتَطِع عَّلَيْهِ صَبْراً} (الكهف: 78)

78- Al Khadir (peace be upon him) said to him: This is the time of our separation as you did not abide by the condition of companionship. I shall tell you with the consequence of the things that you could not observe patience for because you deem it outwardly deniable.

The author of Irshad As-Salik said: The rulings of Moses like other Prophets were based on apparent things, therefore he denied the breaching of the ship and killing a boy where disposal in peoples' money and souls without right is forbidden in the religion which He legislated for his Prophets. Allah did not burden us to search for hidden matters as it contains great harm. As for the case of Al Khadir, he was given the authority to act according to hidden secrets and facts of things.