And they ask you about Zulqarnain. Say: I will recite to you an account of him. 83 We established him in the land and gave him means to all things. 84 Then he followed a way. 85 until when he reached the very limits where the sun sets, he saw it setting in dark turbid waters; and nearby he met a people. We said: "O Dhu al-Qarnayn, you have the power to punish or to treat them with kindness." 86 He said: "As for him (a disbeliever in the Oneness of Allah) who does wrong, we shall punish him; and then he will be brought back unto his Lord; Who will punish him with a terrible torment (Hell). 87 As for those who believe and do good, they will receive virtuous rewards and We will tell them to do only what they can. 88 And once again he chose the right means [to achieve a right end]. 89 Till he reached the point of the rising sun, and saw it rise over a people for whom We had provided no shelter against it. 90 Even so! and We had a full knowledge of what he had. 91 Then he followed (another) course. 92 Until, when he reached between two mountains, he found, before (near) them (those two mountains), a people who scarcely understood a word. 93 They said: O Zulqarnain! surely Gog and Magog make mischief in the land. Shall we then pay you a tribute on condition that you should raise a barrier between us and them 94 He said: better is that wherein my Lord hath established me; so help me with might, and I shall place between you and them a rampart. 95 Bring me blocks of iron; until when he had filled up the space between the two mountain sides, he said: Blow, until when he had made it (as) fire, he said: Bring me molten brass which I may pour over it. 96 So they [Ya'juj and Ma'juj (Gog and Magog)] were made powerless to scale it or dig through it. 97 He said, “This is the mercy of my Lord; then when the promise of my Lord arrives, He will blow it to bits; and my Lord’s promise is true.” 98 ۞ We shall leave them on that day surging like waves pressing one against the other, and the trumpet blast will be sounded, when We shall gather them all together. 99 And We shall bring hell in front of the disbelievers. 100 Those whose eyes had been within a cover [removed] from My remembrance, and they were not able to hear. 101