Surah Al-Kahf (The Cave), Verse 93

حَتّٰۤی اِذَا بَلَغَ بَیْنَ السَّدَّیْنِ وَجَدَ مِنْ دُوْنِهِمَا قَوْمًا لَّا یَكَادُوْنَ یَفْقَهُوْنَ قَوْلًا ۟

Hattaaa izaa balagha bainas saddaini wajada min doonihimaa qawmal laa yakaa doona yafqahoona qawlaa

“Until, when he reached (a tract) between two mountains, he found, beneath them, a people who scarcely understood a word.”

Quran 18:93 (Yusuf Ali Translation)