Safwan ibn Umayyah sent him with some milk, a young gazelle and some small cucumbers to the Messenger of Allah ﷺ when he was in the upper part of Mecca. I entered but I did not give a salutation. He said: Go back and say: "Peace be upon you"! This happened after Safwan ibn Umayyah and embraced Islam. Amr said: Ibn Safwan told me all this on the authority of Kaladah ibn Hanbal, and he did not say: I heard it from him. Abu Dawud said: Yahya b. Habib said: Umayyah b. Safwan. He did not say: I heard from Kaladah b. Hanbal. Yahya also said: 'Amr b. 'Abd Allah b. Safwan told him that Kaladah b. al-Hanbal told him.  

أَنَّ صَفْوَانَ بْنَ أُمَيَّةَ بَعَثَهُ إِلَى رَسُولِ اللَّهِ ﷺ بِلَبَنٍ وَجِدَايَةٍ وَضَغَابِيسَ وَالنَّبِيُّ ﷺ بِأَعْلَى مَكَّةَ فَدَخَلْتُ وَلَمْ أُسَلِّمْ فَقَالَ ارْجِعْ فَقُلِ السَّلاَمُ عَلَيْكُمْ وَذَاكَ بَعْدَ مَا أَسْلَمَ صَفْوَانُ بْنُ أُمَيَّةَ قَالَ عَمْرٌو وَأَخْبَرَنِي ابْنُ صَفْوَانَ بِهَذَا أَجْمَعَ عَنْ كَلَدَةَ بْنِ حَنْبَلٍ وَلَمْ يَقُلْ سَمِعْتُهُ مِنْهُ  

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