The Holy Quran 18:47 — Surah Al-Kahf
Arabic text
وَيَوْمَ نُسَيِّرُ ٱلْجِبَالَ وَتَرَى ٱلْأَرْضَ بَارِزَةً وَحَشَرْنَـٰهُمْ فَلَمْ نُغَادِرْ مِنْهُمْ أَحَدًا
Translation
(Do not forget) The day (of Qiyaamah) when We will cause the mountains to fly (when the earth quakes, after which they will be reduced to dust), when you will see the earth as an open plain (with everything on it destroyed) and We shall resurrect them (Mu'mineen and Kuffaar alike), not leaving out any of them (so that everyone will have to present himself/herself in Allaah's Court).
Tafsir (excerpt) — Tafsir Usmani
The state of the mountains and the earth on the Day of Resurrection: that is, when the Day of Resurrection comes, even so hard a creation as the mountains will be moved from its place; indeed, their heavy rocks will fly about in the air like carded wool. In short, all the elevations of the earth will be wiped out, and its surface will remain level and open.
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