Yahya related to me from Malik from Nafi from Abdullah ibn Umarthat the Messenger of Allah, may Allah bless him and grant him peace,sent a raiding party which included Abdullah ibn Umar near Najd. Theyplundered many camels and their portions were twelve or eleven camelseach. They divided it up camel by camel.
USC-MSA web (English) reference: Book 21, Hadith 15
Arabic reference: Book 21, Hadith 976