Hadithcore
Sunan Abi Dawud, 5179

Rib’i said that a man of Banu Amir told him that he asked permission of the prophet (ﷺ) to enter the house. He related the tradition to the same effect, saying :

I heard it and so I said: Peace be upon you. May I enter?

حَدَّثَنَا عُبَيْدُ اللَّهِ بْنُ مُعَاذٍ، حَدَّثَنَا أَبِي، حَدَّثَنَا شُعْبَةُ، عَنْ مَنْصُورٍ، عَنْ رِبْعِيٍّ، عَنْ رَجُلٍ، مِنْ بَنِي عَامِرٍ أَنَّهُ اسْتَأْذَنَ عَلَى النَّبِيِّ صلى الله عليه وسلم بِمَعْنَاهُ ‏.‏ قَالَ فَسَمِعْتُهُ فَقُلْتُ السَّلاَمُ عَلَيْكُمْ أَأَدْخُلُ

References2 variants
In-Book Reference
Book 43, Hadith 407
English Reference
Book 42, Hadith 5160