78:20

وَسُيِّرَتِ الْجِبَالُ فَكَانَتْ سَرَابًا

Transliteration:

Wasuyyirati aljibalu fakanat saraban

Word by Word:

And are moved the mountains and become a mirage.

Translations:

and when the mountains are made to vanish as if they had been a mirage.

And the mountains shall vanish, as if they were a mirage.

And the hills are set in motion and become as a mirage.

And the mountains are moved off, so they remain a semblance.

And the mountains are removed and will be [but] a mirage.