Sahih Bukhari Volume 8, Book 75, Hadith Number 411.Sahih Bukhari Book 75. Invocations Narated By Abu Huraira : The Prophet said, “When the Imam says ‘Amin’, then you should all say ‘Amin’, for the angels say ‘Amin’ at that time, and he whose ‘Amin’ coincides with the ‘Amin’ of the angels, all his past sins will be forgiven.” Related Previous Post Sahih Bukhari Volume 8, Book 75, Hadith Number 412. Next Post Sahih Bukhari Volume 8, Book 75, Hadith Number 410.