Musannaf Ibn Abi Shaybah 24474 — What a judge's ruling does not make

It is narrated from Sayyidah Umm Salamah (may Allah be pleased with her) that two men of the Ansar came to the Prophet (peace and blessings be upon him), disputing about an inheritance whose traces had been effaced, and they had no witnesses. The Prophet (peace and blessings be upon him) said: "You bring your disputes to me, and I too am a human being like you. Perhaps some of you may prevail over others in proof and argument. I only judge between you according to what I hear. So whoever is given a judgment from the right of his brother should not collect it, for it is only a piece of the Fire, which on the Day of Resurrection will be a rod of Fire in his neck." Sayyidah Umm Salamah (may Allah be pleased with her) said: Hearing this, both of them began to weep, and each said to the other: "My right is for my brother." The Prophet (peace and blessings be upon him) said: "Since you have done this, now both of you go and divide it between yourselves, aim for the truth, then cast lots between yourselves, and then let each of you make his share lawful for his brother."