Sayyiduna Jabir (may Allah be pleased with him) narrates that two men brought a dispute regarding a she-camel to the Prophet Muhammad (peace be upon him). One of them said: "This she-camel gave birth to a calf at my place." Each of them presented evidence, so the Prophet Muhammad (peace be upon him) gave the verdict in favor of the person in whose possession the she-camel was at that time.
Hadith Referenceسنن الدارقطني / كتاب فى الأقضية والأحكام وغير ذلك / 4477