﴿ فَغَشَّىٰهَا مَا غَشَّىٰ ﴾

“and then covered them from sight forever.”

so that there covered them of rocks afterwards that which covered them this is purposely left vague in order to inspire terror; in sūrat Hūd it is stated We made their uppermost the nethermost and We rained upon them stones of baked clay Q. 1182.