18:77So they set out. Until, when they reached the people of a town, they asked them for food, but they refused to offer them hospitality. There they found a wall about to collapse, and he repaired it. He said, “If you wanted, you could have obtained a payment for it.”

18:82And as for the wall, it belonged to two orphaned boys in the town. Beneath it was a treasure that belonged to them. Their father was a righteous man. Your Lord wanted them to reach their maturity, and then extract their treasure—as a mercy from your Lord. I did not do it of my own accord. This is the interpretation of what you were unable to endure.”

18:94They said, “O Zul-Qarnain, the Gog and Magog are spreading chaos in the land. Can we pay you, to build between us and them a wall?”