[Machine] Narrated by the Prophet ﷺ , the angels prayed upon Adam and glorified him four times. They said, "This is your tradition, O children of Adam." It is also reported by Uthman ibn Sa'd with a continuous chain of narration from Ubayy ibn Ka'b.
عَنِ النَّبِيِّ ﷺ قَالَ صَلَّتِ الْمَلَائِكَةُ عَلَى آدَمَ فَكَبَّرَتْ عَلَيْهِ أَرْبَعًا وَقَالَتْ هَذِهِ سُنَّتُكُمْ يَا بَنِي آدَمَ وَقِيلَ عَنْ عُثْمَانَ بْنِ سَعْدٍ بِإِسْنَادِهِ مَوْقُوفًا عَلَى أُبَيِّ بْنِ كَعْبٍ