"We asked Ibn 'Umar about Nabidh made in an earthenware jar and he said: 'The Messenger of Allah forbade it.' He said: 'Ibn 'Umar spoke the truth.' I said: 'What is an earthenware jar?' He said: 'Anything that is made of clay.'"
Sunan an-Nasa'i Book 51, Hadith 81
← Previous Hadith "I heard 'Abdul-'Aziz - that is, bin Asid At-Tahi from Al-Basrah - say: 'Ibn Az-Zubair was asked about soaking (fruits) in earthenware jars and he said: "The Messenger of Allah forbade us from that."

Sunan an-Nasa'i Book 51, Hadith 80 Next Hadith → "I was with Ibn 'Umar when he was asked about Nabidh made in an earthenware jar. He said: 'The Messenger of Allah forbade it.' I said: 'What is an earthenware jar?' He said: 'Anything that is made of clay.'"

Sunan an-Nasa'i Book 51, Hadith 82