Maliks Muwatta Book 042, Hadith Number 005.

Section : Containers Forbidden for Preparation of Nabidh.

Yahya related to me from Malik from Nafi from Abdullah ibn Umar that the Messenger of Allah, may Allah bless him and grant him peace, addressed the people in one of his raids. Abdullah ibn Umar said, "I went towards him, but he finished before I reached him. I asked about what he had said. Someone said to me, 'He forbade preparing nabidh in a gourd or in a jug smeared with pitch.'"