Surah Al-Mulk (The All Authority), Verse 3

الَّذِیْ خَلَقَ سَبْعَ سَمٰوٰتٍ طِبَاقًا مَا تَرٰی فِیْ خَلْقِ الرَّحْمٰنِ مِنْ تَفٰوُتٍ فَارْجِعِ الْبَصَرَ هَلْ تَرٰی مِنْ فُطُوْرٍ ۟

Allazee khalaqa sab'a samaawaatin tibaaqam maa taraa fee khalqir rahmaani min tafaawut farji'il basara hal taraa min futoor

“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?”

Quran 67:3 (Yusuf Ali Translation)