Musnad Abu Ya'la al-Mawsili 155:82

Abu Ma'mar al-Hudhali narrated to us, Hafs bin Ghiyath narrated to us, from Muhammad bin 'Amr, from Abu Salamah, from Abu Hurairah: That the Prophet (ﷺ) ascended the pulpit and said: "Amin, Amin, Amin." It was said: "O Messenger of Allah, when you ascended the pulpit, you said: 'Amin, Amin, Amin.'" He said: "Indeed, Jibril came to me and said: 'Whoever reaches the month of Ramadan and is not forgiven, then enters the Fire, may Allah distance him. Say: Amin.' So I said: 'Amin.' 'And whoever reaches his parents, or one of them, and does not treat them with goodness, then dies and enters the Fire, may Allah distance him. Say: Amin.' So I said: 'Amin.' 'And whoever is mentioned in his presence and does not send blessings upon you, then dies and enters the Fire, may Allah distance him. Say: Amin.' So I said: 'Amin.'"