Surah At-Takwir 81:3

وَإِذَا ٱلْجِبَالُ سُيِّرَتْ

And when the mountains are removed

Translation: Saheeh International

Tafsir

and when the mountains are set in motion when they are blown away from the face of the earth becoming as scattered dust

Excerpt from Tafsir al-Jalalayn, commentary on 81:3, via Quran.com. The reader has the full commentary and 9 more tafsirs.