that 'Amr bin 'Abdullah bin Safwan informed him, that Kaladah bin Hanbal had informed him, that Safwan bin Umayyah sent him to bring some milk, colostrum, and Daghabis (a type of herb) to the Prophet ﷺ while he was in the upper valley. (He said): "I entered upon him without seeking permission nor giving Salam. The Prophet ﷺ said: 'Go back and say: As-Salamu Alaykum, may I enter?'" And that was after Safwan had accepted Islam."
أَخْبَرَهُ أَنَّ صَفْوَانَ بْنَ أُمَيَّةَ بَعَثَهُ بِلَبَنٍ وَلِبَإٍ وَضَغَابِيسَ إِلَى النَّبِيِّ ﷺ وَالنَّبِيُّ ﷺ بِأَعْلَى الْوَادِي قَالَ فَدَخَلْتُ عَلَيْهِ وَلَمْ أُسَلِّمْ وَلَمْ أَسْتَأْذِنْ فَقَالَ النَّبِيُّ ﷺ ارْجِعْ فَقُلِ السَّلاَمُ عَلَيْكُمْ أَأَدْخُلُ وَذَلِكَ بَعْدَ مَا أَسْلَمَ صَفْوَانُ قَالَ عَمْرٌو وَأَخْبَرَنِي بِهَذَا الْحَدِيثِ أُمَيَّةُ بْنُ صَفْوَانَ وَلَمْ يَقُلْ سَمِعْتُهُ مِنْ كَلَدَةَ