Surah Al-Anfal — Ayah 50 (8:50)

English translation (Saheeh International)

And if you could but see when the angels take the souls of those who disbelieved...¹ They are striking their faces and their backs and [saying], "Taste the punishment of the Burning Fire.

1. - This sentence is left incomplete for additional effect. Its conclusion is left to the imagination of the reader or listener and estimated as "...you would see a dreadful sight."

Brief commentary

If only you, O Messenger, could see those who disbelieve in Allah and His messengers at the time when the angels remove their souls, striking their faces when they face towards them and striking their backs when they try to run away, and saying to them: Taste, O disbelievers, the burning punishment! If you had to see that, you would see a serious heart-wrenching sight.