Al-Mulk 67:3

Allathee khalaqa sabAAa samawatintibaqan ma tara fee khalqi arrahmanimin tafawutin farjiAAi albasara hal taramin futoor

[And] who created seven heavens in layers. You do not see in the creation of the Most Merciful any inconsistency. So return [your] vision [to the sky]; do you see any breaks?

who has created seven skies, one over the other. You will see nothing out of proportion in the creation of the RaHmān (the All-Merciful Allah). So, cast your eye again. Do you see any rifts?