that the Prophet ﷺ went up the minbar. When he reached the first step, he said, "Amen". When he ascended to the second step, he said, "Amen," and when he stepped onto the third step, he said, "Amen." 

They asked: Messenger of Allah, we heard you say Amen three times? He said: "When I went up the first step, Jibril ﷺ came to me and said, 'Wretched is the slave to whom Ramadan comes and when it passes from him is not forgiven.' I said, 'Amen.' Then he said, 'Wretched is the slave who has one or both of his parents alive and they do not let him enter Jannah.' I said, 'Amen.' Then he said, 'Wretched is a slave who does not send salawat upon you when you are mentioned in his presence,' and I said, 'Amen.'"

أَنَّ النَّبِيَّ ﷺ رَقَى الْمِنْبَرَ فَلَمَّا رَقَى الدَّرَجَةَ الأُولَى قَالَ: «آمِينَ» ثُمَّ رَقَى الثَّانِيَةَ فَقَالَ: «آمِينَ» ثُمَّ رَقَى الثَّالِثَةَ فَقَالَ : «آمِينَ» 

فَقَالُوا: يَا رَسُولَ اللهِ سَمِعْنَاكَ تَقُولُ آمِينَ ثَلاَثَ مَرَّاتٍ؟ قَالَ: «لَمَّا رَقِيتُ الدَّرَجَةَ الأُولَى جَاءَنِي جِبْرِيلُ ﷺ فَقَالَ شَقِيَ عَبْدٌ أَدْرَكَ رَمَضَانَ فَانْسَلَخَ مِنْهُ وَلَمْ يُغْفَرْ لَهُ فَقُلْتُ آمِينَ ثُمَّ قَالَ شَقِيَ عَبْدٌ أَدْرَكَ وَالِدَيْهِ أَوْ أَحَدَهُمَا فَلَمْ يُدْخِلاَهُ الْجَنَّةَ فَقُلْتُ آمِينَ ثُمَّ قَالَ شَقِيَ عَبْدٌ ذُكِرْتَ عِنْدَهُ وَلَمْ يُصَلِّ عَلَيْكَ فَقُلْتُ آمِينَ»