وَيَوْمَ نُسَيِّرُ الْجِبَالَ وَتَرَى الْأَرْضَ بَارِزَةً وَحَشَرْنَاهُمْ فَلَمْ نُغَادِرْ مِنْهُمْ أَحَدًا (47)
(18:47) The only thing, for which you should prepare, is the Day when We will set the mountains in motion, *42 and when you will find the Earth quite naked, *43 and We will muster together all human beings in a way as to leave none at all behind, *44
*42) The mountains will begin to move about like clouds when the gravitation of the earth shall be brought to an end. The Qur'an has described the same thing in XXVII: 88 in this way: "When you see the mountains, you consider them to be firmly fixed, but they shall be floating about like clouds at that time."
*43) "You will find the Earth quite naked": You will find no vegetation and no building on it and it will become a barren plain. It is the same thing that has been stated in v. 8 of this Chapter.
*44) That is, "We will muster together every human being from the first Man, Adam, to the last one born in the last moment of the Day of Resurrection: even that child which had breathed the first breath after its birth, shall be resurrected and all shall be mustered at one and the same tune."