"The Messenger of Allah (ﷺ) said: 'When the Imam says: Not (the way) of those who earned Your anger, nor of those who went astray, say: 'Amin' for the angels say Amin and the Imam says Amin, and if a person's Amin coincides with the Amin of the angels, his previous sins will be forgiven.'"
Reference: Sunan an-Nasa'i 927 In-book : Book 11, Hadith 52 English translation : Vol. 2, Book 11, Hadith 928
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