Surah Al-Hijr — Ayah 82 (15:82)
وَكَانُواْ يَنۡحِتُونَ مِنَ ٱلۡجِبَالِ بُيُوتًا ءَامِنِينَ ٨٢
English translation (Saheeh International)
And they used to carve from the mountains, houses, feeling secure.
Brief commentary
They used to carve out dwellings in the rocks of the mountains in which they lived safe from that which they feared.