An-Naml • BN-TAFSEER-IBN-E-KASEER
﴿ وَتَرَى ٱلْجِبَالَ تَحْسَبُهَا جَامِدَةًۭ وَهِىَ تَمُرُّ مَرَّ ٱلسَّحَابِ ۚ صُنْعَ ٱللَّهِ ٱلَّذِىٓ أَتْقَنَ كُلَّ شَىْءٍ ۚ إِنَّهُۥ خَبِيرٌۢ بِمَا تَفْعَلُونَ ﴾
“And thou wilt see the mountains, which [now] thou deemest so firm, pass away as clouds pass away: a work of God, who has ordered all things to perfection! Verily, He is fully aware of all that you do!”
Please check ayah 27:90 for complete tafsir.