It is narrated from Sayyiduna Ibn Umar (may Allah be pleased with them both) that once the Prophet (peace and blessings be upon him) had the call of "As-Salat Jami'ah" announced among the people. When Sayyiduna Ibn Umar (may Allah be pleased with them both) found out, he rode his horse and reached his house. He took off the clothes he was wearing, because he would not go to the Prophet (peace and blessings be upon him) in those clothes, and after changing into other clothes, he set out towards the mosque. At that time, the Prophet (peace and blessings be upon him) was descending from the pulpit and the people were standing before him. Sayyiduna Ibn Umar (may Allah be pleased with them both) asked the people, "Has the Prophet (peace and blessings be upon him) given any new command today?" The people informed him that the Prophet (peace and blessings be upon him) had prohibited nabidh. He asked, "Which nabidh?" The people replied, "The one prepared in gourds and wooden vessels." The narrator says that I asked Nafi' (may Allah have mercy on him), "What is the ruling about jarrah?" He said, "What is jarrah?" I said, "Hantamah." He asked, "What is hantamah?" I said, "A clay pot." He said, "There is no prohibition regarding it." I asked, "What is the ruling about muzaffat?" He asked, "What is muzaffat?" I explained, "It is a waterskin that is coated with pitch." He said, "On that day, the Prophet (peace and blessings be upon him) only forbade (nabidh) from gourds and wooden vessels."