Musnad Abu Ya'la al-Mawsili 131:8

Abu Khaythama narrated to us, Abdullah ibn Idris narrated to us, he said: I heard Mukhtar ibn Fulful say: I asked Anas about drinking from vessels. He said: The Messenger of Allah (may Allah bless him and grant him peace) forbade the *muzaffat* (pitch-coated vessels), and he said: "Every intoxicant is unlawful."