Anas bin Malik (may Allah be pleased with him) says that Abu Taybah performed cupping for the Messenger of Allah (peace and blessings of Allah be upon him), so the Prophet (peace be upon him) gave him a sa’ of dates and ordered his owner to reduce his tax.
Narrated Ibn Abbas (may Allah be pleased with them): The Messenger of Allah (peace and blessings of Allah be upon him) once had cupping done, and he gave wages to the one who performed the cupping for him. If this wage had been unlawful, he (peace and blessings of Allah be upon him) would never have given it.