"I asked Al-Hasan about Nabidh made in earthenware jars - is it unlawful? He said: '(It is) unlawful. One who would not lie narrated to us that the Messenger of Allah forbade Nabidh made in Al-Hantam, Ad-Dubba' (gourds), Al-Muzaffat and An-Naqir.'"
Sunan an-Nasa'i Book 51, Hadith 85