18:86
Until, when he reached (the) setting place (of) the sun, he found it setting in a spring (of) dark mud, and he found near it a community. We said, "O Dhul-qarnain (Possessor of two Either [that] you punish or [that] you take [in] them (with) goodness."
18:94
They said, "O Dhul-qarnain (Possessor of two Indeed, Yajuj and Majuj (are) corrupters in the land. So may we make for you an expenditure [on] that you make between us and between them a barrier?"