"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
← Previous Hadith "The Messenger of Allah forbade Al-Hantam. I (the narrator) said: "What is Al-Hantam?" He said: "The earthenware jar."

Sunan an-Nasa'i Book 51, Hadith 79 Next Hadith → "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