18:17You would have seen the sun, when it rose, veering away from their cave towards the right, and when it sets, moving away from them to the left, as they lay in the midst of the cave. That was one of God’s wonders. He whom God guides is truly guided; but he whom He misguides, for him you will find no directing friend.

18:86Until, when he reached the setting of the sun, he found it setting in a murky spring, and found a people in its vicinity. We said, “O Zul-Qarnain, you may either inflict a penalty, or else treat them kindly.”

18:90Until, when he reached the rising of the sun, he found it rising on a people for whom We had provided no shelter from it.