It is narrated from Hazrat Abu Saeed Khudri (may Allah be pleased with him) that once some people from the delegation of Banu Abdul Qais came to the Prophet (peace and blessings be upon him) and said, "O Messenger of Allah! May our lives be sacrificed for you, what is appropriate for us regarding drinks?" The Prophet (peace and blessings be upon him) said, "Do not drink anything in a 'naqir'." They said, "O Messenger of Allah! May our lives be sacrificed for you, do you know what a 'naqir' is?" The Prophet (peace and blessings be upon him) said, "Yes! It is a piece of wood that is hollowed out from the middle. Likewise, do not drink in gourds or jugs, but rather drink in a leather bag that is tied at the top."