Qaf 50:6
أَفَلَمْ يَنظُرُوٓا۟ إِلَى ٱلسَّمَآءِ فَوْقَهُمْ كَيْفَ بَنَيْنَـٰهَا وَزَيَّنَّـٰهَا وَمَا لَهَا مِن فُرُوجٍ
Afalam yanthuroo ila assama-ifawqahum kayfa banaynaha wazayyannahawama laha min furooj
Have they not looked at the heaven above them - how We structured it and adorned it and [how] it has no rifts?
Did they not, then, look to the sky above them, how We have built it and beautified it, and it has no cracks?