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Surah 18. Al-Kahf
Ayah 17 - 18
17 وَتَرَى ٱلشَّمْسَ إِذَا طَلَعَت تَّزَٰوَرُ عَن كَهْفِهِمْ ذَاتَ ٱلْيَمِينِ وَإِذَا غَرَبَت تَّقْرِضُهُمْ ذَاتَ ٱلشِّمَالِ وَهُمْ فِى فَجْوَةٍ مِّنْهُ ۚ ذَٰلِكَ مِنْ ءَايَـٰتِ ٱللَّهِ ۗ مَن يَهْدِ ٱللَّهُ فَهُوَ ٱلْمُهْتَدِ ۖ وَمَن يُضْلِلْ فَلَن تَجِدَ لَهُۥ وَلِيًّا مُّرْشِدًا
18 وَتَحْسَبُهُمْ أَيْقَاظًا وَهُمْ رُقُودٌ ۚ وَنُقَلِّبُهُمْ ذَاتَ ٱلْيَمِينِ وَذَاتَ ٱلشِّمَالِ ۖ وَكَلْبُهُم بَـٰسِطٌ ذِرَاعَيْهِ بِٱلْوَصِيدِ ۚ لَوِ ٱطَّلَعْتَ عَلَيْهِمْ لَوَلَّيْتَ مِنْهُمْ فِرَارًا وَلَمُلِئْتَ مِنْهُمْ رُعْبًا
[17-18] If you had looked at them in the Cave,12 it would have appeared to you that when the sun rose, it left the Cave to one side and inclined towards the right, and when it set, it turned away from them and went to the left while they lay in the spacious place inside the Cave.13 This was one of the Signs of Allah. Whomsoever Allah guides aright, he is guided aright, and whomsoever Allah lets go astray, you will find no guardian to direct him. If you had seen them, it would have appeared to you as if they were awake, whereas in fact they were asleep. We turned them about to the right and the left sides.14 And their dog was sitting at the entrance of the Cave with outstretched forelegs. If you had looked at them, you would have turned on your heels and their sight would have struck you with terror.15
12It has not been mentioned that in accordance with this mutual resolve, they left the city and went to a secret Cave in the mountains in order to escape from death or forced apostasy.
13This is to show that the mouth of the Cave faced the north. That is why the light of the sun could not enter inside the Cave and the one who passed by it could not see who was inside it.
14That is, "If some one could have peeped at the Seven Persons from outside and seen them turning from one side to the other at intervals, he would have thought that they were not asleep but were relaxing themselves."
15Allah had so arranged their refuge that none dared go inside the Cave and know about them for it was pitch dark in the Cave and the dog was keeping watch at the entrance. If someone ever peeped into the Cave and saw the Sleepers, he took them for some robbers and at once turned on his heels. This was the reason why their refuge remained a secret to the outer world for such a long period.