Musnad Ahmad 1012:82

Muhammad ibn Salamah narrated to us, from Ibn Ishaq, from Abd al-Rahman, from Sulayman ibn Musa, from Makhul, from Abu Umamah al-Bahili, who said: I asked Ubadah ibn al-Samit about the *anfal* (spoils of war). He said: "It was revealed concerning us, the group of the companions of Badr, when we differed regarding the spoils and our conduct concerning it became poor. So Allah took it away from our hands and placed it with the Messenger of Allah, peace and blessings of Allah be upon him. Then the Messenger of Allah, peace and blessings of Allah be upon him, divided it among the Muslims equally." He said: "Meaning, upon equality."