الفرقان — Al-Furqan Ayat 25

وَيَوْمَ تَشَقَّقُ السَّمَاۤءُ بِالْغَمَامِ وَنُزِّلَ الْمَلٰۤىِٕكَةُ تَنْزِيْلًا

Wa yauma tasyaqqaqus-samā'u bil-gamāmi wa nuzzilal-malā'ikatu tanzīlā(n).

"And [mention] the Day when the heaven will split open with [emerging] clouds, and the angels will be sent down in successive descent."