Surah Al-Kahf Ayahs #96 Translated in English

Then he followed a way.

Until, when he reached [a pass] between two mountains, he found beside them a people who could hardly understand [his] speech.

They said, "O Dhul-Qarnayn, indeed Gog and Magog are [great] corrupters in the land. So may we assign for you an expenditure that you might make between us and them a barrier?"

He said, "That in which my Lord has established me is better [than what you offer], but assist me with strength [i.e., manpower]; I will make between you and them a dam.

Bring me bars of iron" - until, when he had leveled [them] between the two mountain walls, he said, "Blow [with bellows]," until when he had made it [like] fire, he said, "Bring me, that I may pour over it molten copper."