Musannaf Ibn Abi Shayba 18:54

Abu Bakr narrated to us, he said: Abd al-Rahim ibn Sulayman narrated to us, from Muhammad ibn Ishaq, from Makhul, that the Messenger of Allah (may Allah bless him and grant him peace) decreed for the *mudihah* (a wound that exposes the bone) five camels, and he did not decree [anything] regarding other than that.