And [mention] the Day when the heaven will split open with [emerging] clouds, and the angels will be sent down in successive descent.
The Saheeh International Quran Translation
وَيَوْمَ تَشَقَّقُ ٱلسَّمَآءُ بِٱلْغَمَٰمِ وَنُزِّلَ ٱلْمَلَٰٓئِكَةُ تَنزِيلًاAnd [mention] the Day when the heaven will split open with [emerging] clouds, and the angels will be sent down in successive descent.