Sa'id bin Abi Burdah (may Allah have mercy on him) narrates from his father that two men brought a dispute over a riding animal to the Prophet (peace and blessings be upon him), and neither of them had proof. He (peace and blessings be upon him) divided it between them in halves.
Hadith Referenceالسنن الكبرى للبيهقي / كتاب الدعوى والبينات / 21214