Caution: Translations of Quran and Ḥadīth may lead to possible misapplications and misinterpretations. This site is intended for students of sacred knowledge that are proficient in comprehending classical Arabic and have a strong foundation in Islamic sciences. Also note that religious injunctions rely on several aspects beyond what one may glean through reading individual aḥādīth.
Qurʾān Bukhārī Muslim Nasāʾī Abū Dāwūd Tirmidhī Ibn Mājah Mālik Aḥmad Dārimī Ḥākim Ibn Ḥibbān Ṭabarānī Nasāʾī's Kubrá Bayhaqī al-Luʾluʾ wa-al-Marjān Ibn Rajab's Fifty Riyāḍ al-Ṣāliḥīn Aḥmad's Zuhd Suyūṭī
quran:25:25 –

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

And on the day when the heaven, each of the ˹seven˺ heavens, will be split asunder with the clouds, in other words, ˹split asunder˺ together with them ˹the clouds˺ (al-ghamām is white cloud) and the angels will be sent down, from every heaven, in a ˹majestic˺ descent, and this is the Day of Resurrection (it ˹yawma, ‘on the day’˺ is in the accusative because of an implied ˹preceding˺ udhkur, ‘mention’; a variant reading ˹for tashaqqaqu˺ is tashshaqqaqu, ‘will be split asunder’, where the second tā’ ˹of the original form tatashaqqaqu˺ has been assimilated with it the ˹the shīn˺; another variant reading ˹instead of nuzzila almalā’ikatu, ‘the angels will be sent down’˺ has nunzilu al-malā’ikata, ‘We will send down the angels’);
القرآن:٢٥:٢٥ –

وَيَوْمَ تَشَقَّقُ السَّمَاءُ بِالْغَمَامِ وَنُزِّلَ الْمَلَائِكَةُ تَنْزِيلًا  

{ويوم تشقق السماء} أي كل سماء {بالغمام} أي معه وهو غيم أبيض {ونزّل الملائكة} من كل سماء {تنزيلا} هو يوم القيامة ونصبه باذكر مقدرا وفي قراءة بتشديد شين تشقق بإدغام التاء الثانية في الأصل فيها، وفي أخرى: ننزل بنونين الثانية ساكنة وضم اللام ونصب الملائكة.