18:11

Al-Kahf 18:11

فَضَرَبْنَا عَلَىٰٓ ءَاذَانِهِمْ فِى ٱلْكَهْفِ سِنِينَ عَدَدًۭا

Fadarabnaa 'alaaa aazaanihim fil Kahfi seneena 'adadaa

So We prevented them from hearing in the cave for a number of years.