al-Aswad bin Yazid الأسود بن يزيد بن قيس النخعي · Chapters on Medicine

“I heard Salim bin ‘Abdullah narrating from his father that the Messenger of Allah (ﷺ) said: ‘You should eat this black seed, for in it there is healing from every disease, except the Sam (death).’”

“Truffles are a type of manna, and their water is a healing for eye (diseases). And the `Ajwah* are from Paradise, and they are healing for possession.”** Another chain from Abu Sa`eed from the Prophet (ﷺ) with similar wording.

“The Messenger of Allah (ﷺ) said: ‘What a good slave is the cupper. He takes away the blood, reduces pressure on the spine, and improves the eyesight.’”

“The Messenger of Allah (ﷺ) said: ‘On the night on which I was taken on the Night Journey (Isra’), I did not pass by any group (of angels) but they said to me: “O Muhammad, tell your nation to use cupping.”