An-Naba • BN-TAFSEER-IBN-E-KASEER
﴿ وَسُيِّرَتِ ٱلْجِبَالُ فَكَانَتْ سَرَابًا ﴾
“and when the mountains are made to vanish as if they had been a mirage.”
Please check ayah 78:30 for complete tafsir.