سورة Al-Kahf 18:93

حَتَّىٰٓ إِذَا بَلَغَ بَيْنَ ٱلسَّدَّيْنِ وَجَدَ مِن دُونِهِمَا قَوْمًۭا لَّا يَكَادُونَ يَفْقَهُونَ قَوْلًۭا ٩٣

until he reached ˹a pass˺ between two mountains. He found in front of them a people who could hardly understand ˹his˺ language