Musannaf Ibn Abi Shayba 28:795

Hatim ibn Isma'il narrated to us, from Jahdam ibn 'Abd Allah, from Muhammad ibn Ibrahim, from Muhammad ibn Zayd, from Shahr ibn Hawshab, from Abu Sa'id al-Khudri, who said: The Messenger of Allah, may Allah bless him and grant him peace, forbade the purchasing of war spoils until they are divided.