67:3
الَّذِي خَلَقَ سَبْعَ سَمَاوَاتٍ طِبَاقاً مَّا تَرَى فِي خَلْقِ الرَّحْمَنِ مِن تَفَاوُتٍ فَارْجِعِ الْبَصَرَ هَلْ تَرَى مِن فُطُورٍ
He Who created the seven heavens one above another: No want of proportion wilt thou see in the Creation of (Allah) Most Gracious. So turn thy vision again: seest thou any flaw?