It is narrated from Sayyiduna Jabir (may Allah be pleased with him) that once the Prophet (peace and blessings of Allah be upon him) called Abu Taybah. He performed cupping for the Prophet (peace and blessings of Allah be upon him). The Prophet (peace and blessings of Allah be upon him) asked him, "What tax is imposed upon you?" He replied, "Three sa’." The Prophet (peace and blessings of Allah be upon him) reduced it by one sa’.