Sayyiduna Sahl bin Abi Hathmah (may Allah be pleased with him) said: Abdullah bin Sahl was killed at Khaybar. He had gone out there with some companions of his to obtain provisions of dates, and he was found in a spring with his neck broken, and then earth had been thrown over him. They took him and buried him, then came to the Messenger of Allah (peace and blessings be upon him) and told him what had happened. His brother Abd al-Rahman came forward, and with him were his two paternal cousins, Huwayyisah and Muhayyisah, the sons of Mas'ud. Abd al-Rahman was the youngest of them in age, but he was the one with the claim to the blood and held a leading position among the people. When he spoke before his cousins, the Messenger of Allah (peace and blessings be upon him) said: "The elder, the elder." So Huwayyisah and Muhayyisah spoke, and then he spoke after them and mentioned to the Messenger of Allah (peace and blessings be upon him) the killing of their companion. The Messenger of Allah (peace and blessings be upon him) said: "Will you name your killer, then swear fifty oaths against him, and we will hand him over to you?" They said: "We would not swear to what we do not know." The Messenger of Allah (peace and blessings be upon him) said: "Then shall they swear fifty oaths by Allah to you that they did not kill him and do not know who killed him, and then be free of his blood?" They said: "We would not accept the oaths of the Jews; the disbelief in them is too great for them to refrain from swearing to a sin." So the Messenger of Allah (peace and blessings be upon him) paid his blood money from his own funds: a hundred she-camels. Sahl said: By Allah, I will never forget a young red she-camel among them that kicked me with her leg while I was driving them.
Hadith Referenceالسنن الكبرى للبيهقي / كتاب القسامة / 16456