الانبياۤء — Al-Anbiya' Ayat 32
وَجَعَلْنَا السَّمَاۤءَ سَقْفًا مَّحْفُوْظًاۚ وَهُمْ عَنْ اٰيٰتِهَا مُعْرِضُوْنَ
Wa ja‘alnas-samā'a saqfam maḥfūẓā(n), wa hum ‘an āyātihā mu‘riḍūn(a).
"And We made the sky a protected ceiling, but they, from its signs, are turning away."