Musnad Abu Ya'la al-Mawsili 150:182

Abu Kurayb narrated to us, Ibn Abi Za'idah narrated to us, from Sufyan, from Mansur bin Safiyyah, from his mother, from Aisha: That the Messenger of Allah (peace and blessings of Allah be upon him) held a wedding feast for some of his wives with two mudds of barley.