Caution: Translations of Quran and Ḥadīth may lead to possible misapplications and misinterpretations. This site is intended for students of sacred knowledge that are proficient in comprehending classical Arabic and have a strong foundation in Islamic sciences. Also note that religious injunctions rely on several aspects beyond what one may glean through reading individual aḥādīth.
quran:101:5

And the mountains will be like wool, fluffed up.  

and the mountains will be like tufts of wool, like carded wool in terms of the lightness with which it floats ˹in the air˺ until it comes to settle upon the earth.
القرآن:١٠١:٥

وَتَكُونُ الْجِبَالُ كَالْعِهْنِ الْمَنْفُوشِ  

{وتكون الجبال كالعهن المنفوش} كالصوف المندوف في خفة سيرها حتى تستوي مع الأرض.

See similar narrations below:

Collected by Qurʾān
quran:70:9

And the mountains will be like wool,  

and the mountains will be as flakes of wool, in terms of ˹their˺ lightness and ˹their˺ floating about in the wind.
القرآن:٧٠:٩

وَتَكُونُ الْجِبَالُ كَالْعِهْنِ  

{وتكون الجبال كالعهن} كالصوف في الخفة والطيران بالريح.