Saeed bin Jubair (may Allah have mercy on him) says that once he heard Sayyiduna Ibn Umar (may Allah be pleased with them both) saying that the Prophet (peace and blessings be upon him) declared nabidh (fermented drink) in earthenware jars to be forbidden. I went to Sayyiduna Ibn Abbas (may Allah be pleased with them both) and said to him, "Are you not surprised at Abu Abdur Rahman? He thinks that the Prophet (peace and blessings be upon him) declared nabidh in earthenware jars to be forbidden." Sayyiduna Ibn Abbas (may Allah be pleased with them both) said: "He has spoken the truth, the Prophet (peace and blessings be upon him) declared it forbidden." I asked, "What is meant by 'earthenware jar'?" He replied: "Anything that is made from baked clay."