"When the Imam says: Ghair-il-Maghdubi 'Alaihim Walad-Dallin [i.e. not the path of those who earn Your anger, not the path of those who went astray ' (1:7)], then you must say, 'Amin', for if one's utterance of 'Amin' coincides with that of the angels then his past sins will be forgiven."