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.

And (We made) the wind (subservient) to Sulaiman, which made a month's journey in the morning and a month's journey m the evening, and We made a fountain of molten copper to flow out for him, and of the jinn there were those who worked before him by the command of his Lord; and whoever turned aside from Our command from among them, We made him taste of the punishment of burning.

And certainly they endeavored to turn him from his guests, but We blinded their eyes; so taste My chastisement and My warning.