Al Hijr, 82 Ayah
15:82
وَكَانُواْ يَنۡحِتُونَ مِنَ ٱلۡجِبَالِ بُيُوتًا ءَامِنِينَ ٨٢
Wa Kānū Yanĥitūna Mina Al-Jibāli Buyūtāan 'Āminīna
And they used to carve from the mountains, houses, feeling secure.