Sunan An-Nasa'i
Hadith #4391
It was narrated that Rafi bin Khadij Said:""When distributing the spoils of war, the Messenger of Allah used to make ten sheep equivalent to one camel."" Shu'bah said: ""I know most if it from what I heard form Sa'eed bin Masruq, and Sufyan narrated it to me."" (Sahih)