Translation of the verse 93 from Surah Al-Kahf : Number of verses 110 - - page 303 - Part 16.
Until, when he reached between two mountains, he found, before (near) them (those two mountains), a people who scarcely understood a word.
Until, when he reached [a pass] between two mountains, he found beside them a people who could hardly understand [his] speech.
(18:93) till he reached between two mountains, *67 where he found a people who could hardly understand any language. *68
*67) The "two mountains" must have been parts of that mountain range which runs between the Caspian Sea and the Black Sea (as stated in v. 96). This must be so because beyond them was the territory of Gog and Magog.
*68) That is, "It was difficult to communicate with them: their language was almost foreign to Zul-Qarnain and his companions, and, as they were quite barbaric, none could understand their language, nor were they acquainted with any foreign language."