Sunan an-Nasa'i 4718
It was narrated from Bushair bin Yasar that:
'Abdullah bin Sahl Al-Ansari and Muhayysah bin Mas'ud went out to Khaibar, where they went their separate ways to go about their business. 'Abdullah bin Sahl was killed, and Muhayysah came (to Madinah) and went with his brother Huwayysah and 'Abdur-Rahman bin Sahl to the Messenger of Allah. 'Abdur-Rahaman started to speak, because of his position as brother (of the slain man) but the Messenger of Allah said: "Let the elders speak first." So Huyysah and Muhayysah spoken, and told him about what happened to 'Abdullah bin Sahl. The Messenger of Allah said to them: "Will you sewer fifty oaths, then you will receive compensation or be entitled to retaliate?" (In his narration) Malik said: "Yahya said: 'Bushair said that the Messenger of Allah paid the blood money himself, but Sa'eed bin 'Ubaid At-Ta'l disagreed with them (in reporting that).''
قَالَ الْحَارِثُ بْنُ مِسْكِينٍ قِرَاءَةً عَلَيْهِ وَأَنَا أَسْمَعُ، عَنِ ابْنِ الْقَاسِمِ، حَدَّثَنِي مَالِكٌ، عَنْ يَحْيَى بْنِ سَعِيدٍ، عَنْ بُشَيْرِ بْنِ يَسَارٍ، أَنَّهُ أَخْبَرَهُ أَنَّ عَبْدَ اللَّهِ بْنَ سَهْلٍ الأَنْصَارِيَّ وَمُحَيِّصَةَ بْنَ مَسْعُودٍ خَرَجَا إِلَى خَيْبَرَ فَتَفَرَّقَا فِي حَوَائِجِهِمَا فَقُتِلَ عَبْدُ اللَّهِ بْنُ سَهْلٍ فَقَدِمَ مُحَيِّصَةُ فَأَتَى هُوَ وَأَخُوهُ حُوَيِّصَةُ وَعَبْدُ الرَّحْمَنِ بْنُ سَهْلٍ إِلَى رَسُولِ اللَّهِ صلى الله عليه وسلم فَذَهَبَ عَبْدُ الرَّحْمَنِ لِيَتَكَلَّمَ لِمَكَانِهِ مِنْ أَخِيهِ فَقَالَ رَسُولُ اللَّهِ صلى الله عليه وسلم ‏"‏ كَبِّرْ كَبِّرْ ‏"‏ ‏.‏ فَتَكَلَّمَ حُوَيِّصَةُ وَمُحَيِّصَةُ فَذَكَرُوا شَأْنَ عَبْدِ اللَّهِ بْنِ سَهْلٍ فَقَالَ لَهُمْ رَسُولُ اللَّهِ صلى الله عليه وسلم ‏"‏ أَتَحْلِفُونَ خَمْسِينَ يَمِينًا وَتَسْتَحِقُّونَ دَمَ صَاحِبِكُمْ أَوْ قَاتِلِكُمْ ‏"‏ ‏.‏ قَالَ مَالِكٌ قَالَ يَحْيَى فَزَعَمَ بُشَيْرٌ أَنَّ رَسُولَ اللَّهِ صلى الله عليه وسلم وَدَاهُ مِنْ عِنْدِهِ ‏.‏ خَالَفَهُمْ سَعِيدُ بْنُ عُبَيْدٍ الطَّائِيُّ ‏.‏