۞ وَتَرَى الشَّمْسَ إِذَا طَلَعَت تَّزَاوَرُ عَن كَهْفِهِمْ ذَاتَ الْيَمِينِ وَإِذَا غَرَبَت تَّقْرِضُهُمْ ذَاتَ الشِّمَالِ وَهُمْ فِي فَجْوَةٍ مِّنْهُ ۚ ذَٰلِكَ مِنْ آيَاتِ اللَّهِ ۗ مَن يَهْدِ اللَّهُ فَهُوَ الْمُهْتَدِ ۖ وَمَن يُضْلِلْ فَلَن تَجِدَ لَهُ وَلِيًّا مُّرْشِدًا (17)
(18:17) 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.
*12) It 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.
*13) This 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.