Sayyiduna Bara' bin Azib (may Allah be pleased with him) said: My camel had gone astray and I was searching for it when some riders came. They had a banner with them, and the Bedouins gathered around me because of my standing with the Prophet (peace and blessings be upon him). They came to a tent, brought a man out of it and killed him. I asked them, and they told me that he had married his father's wife.
Hadith Referenceالسنن الكبرى للبيهقي / كتاب الحدود / 17054