Translation of the verse 82 from Surah Al-hijr : Number of verses 99 - - page 266 - Part 14.
And they used to hew out dwellings from the mountains (feeling themselves) secure.
And they used to carve from the mountains, houses, feeling secure.
(15:82) They hewed their dwellings into the mountains *46 and apparently lived in full security.
*46) That is, "Their strong and secure buildings, which they had hewed into the mountains, could not protect them from the blast. "
Source : Al-hijr Verse 82: And they used to carve from the mountains, houses, feeling secure.