Al-Qasim bin Abi Bazzah (may Allah have mercy on him) said: I came to Madinah and found a camel that had been slaughtered and divided into four parts, each part for a young she-goat. I wanted to buy one part, but a man from the people of Madinah said to me that the Messenger of Allah (peace and blessings be upon him) "forbade buying the living for the dead." He said: I asked about that man, and I was told good things about him.
Hadith Referenceالسنن الكبرى للبيهقي / كتاب البيوع / 10572