Until when he reached the place where the sun set, he found it going down into a black sea, and found by it a people. We said: O Zulqarnain! either give them a chastisement or do them a benefit.

Do you not see that Allah is He, Whom obeys whoever is in the heavens and whoever is in the earth, and the sun and the moon and the stars, and the mountains and the trees, and the animals and many of the people; and many there are against whom chastisement has become necessary; and whomsoever Allah abases, there is none who can make him honorable; surely Allah does what He pleases.