Sahih al-Bukhari, Book 63, Hadith 90 (In-Book) ⓘ

Narrated `Abdullah bin `Umar: While `Umar was at home in a state of fear, there came Al-`As bin Wail As-Sahmi Abu `Amr, wearing an embroidered cloak and a shirt having silk hems. He was from the tribe of Bani Sahm who were our allies during the pre-Islamic period of ignorance. Al-`As said to `Umar "What is wrong with you?" He said, "Your people claim that they would kill me if I become a Muslim." Al-`As said, "Nobody will harm you after I have given protection to you." So Al-`As went out and met the people streaming in the whole valley. He said, "Where are you going?" They said, "We want Ibn Al-Khattab who has embraced Islam." Al-`As said, "There is no way for anybody to touch him." So the people retreated.

حَدَّثَنَا يَحْيَى بْنُ سُلَيْمَانَ، قَالَ حَدَّثَنِي ابْنُ وَهْبٍ، قَالَ حَدَّثَنِي عُمَرُ بْنُ مُحَمَّدٍ، قَالَ فَأَخْبَرَنِي جَدِّي، زَيْدُ بْنُ عَبْدِ اللَّهِ بْنِ عُمَرَ عَنْ أَبِيهِ، قَالَ بَيْنَمَا هُوَ فِي الدَّارِ خَائِفًا، إِذْ جَاءَهُ الْعَاصِ بْنُ وَائِلٍ السَّهْمِيُّ أَبُو عَمْرٍو، عَلَيْهِ حُلَّةُ حِبَرَةٍ، وَقَمِيصٌ مَكْفُوفٌ بِحَرِيرٍ، وَهُوَ مِنْ بَنِي سَهْمٍ، وَهُمْ حُلَفَاؤُنَا فِي الْجَاهِلِيَّةِ فَقَالَ لَهُ مَا بَالُكَ قَالَ زَعَمَ قَوْمُكَ أَنَّهُمْ سَيَقْتُلُونِي إِنْ أَسْلَمْتُ‏.‏ قَالَ لاَ سَبِيلَ إِلَيْكَ‏.‏ بَعْدَ أَنْ قَالَهَا أَمِنْتُ، فَخَرَجَ الْعَاصِ، فَلَقِيَ النَّاسَ قَدْ سَالَ بِهِمُ الْوَادِي فَقَالَ أَيْنَ تُرِيدُونَ فَقَالُوا نُرِيدُ هَذَا ابْنَ الْخَطَّابِ الَّذِي صَبَا‏.‏ قَالَ لاَ سَبِيلَ إِلَيْهِ‏.‏ فَكَرَّ النَّاسُ‏.‏