[Machine] The Messenger of Allah ﷺ said, "When the Imam says, 'not those who have evoked [Your] anger or those who are astray,' then say, 'Ameen' as Allah will respond to you."
قَالَ رَسُولُ اللهِ ﷺ إِذَا قَالَ الْإِمَامُ {غَيْرِ الْمَغْضُوبِ عَلَيْهِمْ وَلَا الضَّالِّينَ} فَقُولُوا آمِينَ يُجِبْكُمُ اللهُ
Messenger of Allah ﷺ said, "When the Imam says: 'Ghair-il-Maghdubi ʿalaihim Walad-Dallin (i.e. not the path of those who earn Your Anger, nor the path of those who went astray (1.7)), then you must say, 'Ameen', for if one's utterance of 'Ameen' coincides with that of the angels, then his past sins will be forgiven."
أَنَّ رَسُولَ اللَّهِ ﷺ قَالَ إِذَا قَالَ الإِمَامُ {غَيْرِ الْمَغْضُوبِ عَلَيْهِمْ وَلاَ الضَّالِّينَ} فَقُولُوا آمِينَ فَمَنْ وَافَقَ قَوْلُهُ قَوْلَ الْمَلاَئِكَةِ غُفِرَ لَهُ مَا تَقَدَّمَ مِنْ ذَنْبِهِ
[Machine] He heard the Messenger of Allah ﷺ saying, "Not (the path) of those who earn Your anger nor of those who go astray." He said, "Lord, forgive me. Amen."
أَنَّهُ سَمِعَ رَسُولَ اللهِ ﷺ حِينَ قَالَ {غَيْرِ الْمَغْضُوبِ عَلَيْهِمْ وَلَا الضَّالِّينَ} قَالَ «رَبِّ اغْفِرْ لِي آمِينَ»
[Machine] I saw the Messenger of Allah ﷺ and I prayed behind him. He started reciting and said, "{Not those who have evoked [Your] anger or those who are astray}" and he said, "Ameen" loudly.
رَأَيْتُ رَسُولَ اللهِ ﷺ وَصَلَّيْتُ خَلْفَهُ فَأَخَذَ يَقْرَأُ فَقَالَ {غَيْرِ الْمَغْضُوبِ عَلَيْهِمْ وَلَا الضَّالِّينَ} قَالَ «آمِينَ» يَجْهَرُ
Abu Hurairah reported the prophet ﷺ as saying; when the imam recites “ not of those with whom thou art angry, nor of those who go astray” (surah al-fatihah,verse 7) say Amin, for if one’s words (utterance of amin) synchronise with those of the angles, he will be forgiven his past sins. (Using translation from Abū Dāʾūd 935)
"إذا قال الإمام {غَيرِ الْمَغْضُوبِ عَلَيهِمْ وَلَا الضَّالِّينَ}، فقولوا: آمين، فإِنه من وافق قولهُ قول الملائكةِ غفِر له ما تقدم من ذنبه".
"إذَا قال الإمامُ {غَيرِ الْمَغْضُوبِ عَلَيهِمْ وَلَا الضَّالِّينَ} فقولوا: (آمين) يحبكم الله".