Musnad Abu Ya'la al-Mawsili 129:133

Zuhayr narrated to us, Yazid narrated to us, Humayd al-Tawil informed us, from Anas bin Malik, that the Messenger of Allah (ﷺ) was cupped by Abu Taybah. He ordered for him two sa's of food, and he spoke to his masters, so they reduced his tax for him. The Messenger of Allah (ﷺ) said: "The best of what you treat yourselves with is cupping and sea incense (Qust al-Bahri). And do not torture your children by pressing [the throat] for tonsillitis."