Tafsir of Al-Fajr 89:9

And Thamud, who hewed (Jabu) rocks in the valley, meaning, they cut the rocks in the valley. Ibn Abbas said, "They carved them and they hewed them.'' This was also said by Mujahid, Qatadah, Ad-Dahhak and Ibn Zayd. From this terminology it is said (in the Arabic language), - "the hewing of leopard skin'' when it is torn, and - "The hewing of a garment'' when it is opened. The word `Jayb' (pocket or opening in a garment) also comes from Jabu. Allah says,

وتنحتون من الجبال بيوتا فرهين

And you hew in the mountains, houses with great skill. (26:149) A Mention of Fir`awn Allah then says,

وفرعون ذي اﻻوتاد