الكهف — Al-Kahf Ayat 93

حَتّٰىٓ اِذَا بَلَغَ بَيْنَ السَّدَّيْنِ وَجَدَ مِنْ دُوْنِهِمَا قَوْمًاۙ لَّا يَكَادُوْنَ يَفْقَهُوْنَ قَوْلًا

Ḥattā iżā balaga bainas-saddaini wajada min dūnihimā qaumal lā yakādūna yafqahūna qaulā(n).

"Until, when he reached [a pass] between two mountains, he found beside them a people who could hardly understand [his] speech."