The angels descend to the earth and then ascend (1) to heaven, as the texts attesting to this have been mass-transmitted (2). [Allah] (3) sent them down on the day of Badr, the day of Hunayn, and the day of the Trench to support His Messenger and the believers (4), as the Exalted says:

“When you cried to your Lord for help, He answered you, ‘I will reinforce you with a thousand angels, following one another.’”

[Surah al-Anfāl: 9]

And He says:

“Then Allah sent down His tranquility upon His Messenger and the believers, and He sent down forces you did not see.”

[Surah al-Tawba: 26]

And He says:

“So We sent against them a wind and forces you did not see.”

[Surah al-Ahzāb: 9]

And He says:

“Or do they think that We do not hear their secrets and private conversations? Indeed We do, and Our messengers are with them, recording.”

[Surah al-Zukhruf: 80]

And He says:

“Until, when death comes to one of you, Our messengers take his soul, and they never fail in their duty.” (5)

[Surah al-An'ām: 71]

And Allah the Exalted says:

“If only you could see when the angels take the souls of those who disbelieved, striking their faces and their backs.”

[Surah al-Anfāl: 50]

“If only you could see when the wrongdoers are in the throes of death and the angels stretch forth their hands: ‘Yield up your souls!’”

[Surah al-An'ām: 93]

There are many such passages in the Quran, some of which make it known that what (Allah) has described the angels as being (6)