English translation
927. It was narrated from Abû Hurairah that the Prophet ﷺ said: "When the reciter says Âmîn, then say: 'Âmîn' too, for the angels say Âmîn and if a person's Âmîn coincides with the Âmîn of the angels, his previous sins will be forgiven." (Sahîh)
