Musnad Ahmad 30:170

Sufyan narrated to us, from al-Zuhri, from Abu Salamah or Sa'id, that he heard Abu Hurairah say: "The Messenger of Allah (peace and blessings of Allah be upon him) forbade the *duba'* (gourd) and the *muzaffat* (pitch-coated vessel): that one should prepare *nabidh* (fermented drink) in them." And Abu Hurairah says: "And avoid the *hanatam* (green glazed jars)."