Tafsir of Al-Ma'aarij 70:9

And the mountains will be like `Ihn. meaning, like fluffed wool. This was said by Mujahid, Qatadah and As-Suddi. This Ayah is similar to Allah's statement,

وتكون الجبال كالعهن المنفوش

And the mountains will be like carded wool. (101:5) Concerning Allah's statement,

وﻻ يسٲل حميم حميما