Sahih Muslim Book 23, Hadith Number 4954.

Chapter : It is forbidden to prepare Nabidh is varnished jar, gourd, green pitcher, and hollow stumps.

Ibn Buraida, on the authority of his father, reported Allah’s Messenger (may Peace be upon him) as saying: I had forbidden you from the drinking (and preparation of) Nabidh in the vessels made out of leather, but (now) you may drink in all vessels, but you do not drink an intoxicant.