The Cave
IN THE NAME OF GOD, THE MOST GRACIOUS, THE DISPENSER OF GRACE[18:93]
[And he marched on] till, when he reached [a place] between the two mountain-barriers, he found beneath them a people who could scarcely understand a word [of his language].

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* v.93 : This is generally assumed to be the Caucasus. However, since neither the Qur’ān nor any authentic Tradition says anything about the location of these “two mountain-barriers” or the people who lived there, we can safely dismiss all the speculations advanced by the commentators on this score as irrelevant, the more so as the story of Dhu ’l-Qarnayn aims at no more than the illustration of certain ethical principles in a parabolic manner.