the wife of Prophet (ﷺ) said: When the Messenger of Allah (ﷺ) suffered from some pain, he recited mu'awwadhat in his heart and blew (them over him). When the pain became severe, I recited (them) over him and wiped him with his hand in the hope of its blessing.
Sunan Abi Dawud Book 29, Hadith 48
← Previous Hadith We proceeded from the Messenger of Allah (ﷺ) and came to a clan of the Arabs.

They said: We have been told that you have brought what is good from this man. Have you any medicine or a charm, for we have a lunatic in chains?

We said: Yes. Then they brought a lunatic in chains. He said: I recited Surat al-Fatihah over him for three days, morning and evening. Whenever I finished it, I would collect my saliva and spit it out, and he seemed as if he were set free from a bond. He said: They gave me some payment, but I said: No, not until I ask the Messenger of Allah (ﷺ).

He (the Prophet) said: Accept it, for, by my life, some accept it for a worthless charm, but you have done so for a genuine one.

Sunan Abi Dawud Book 29, Hadith 47 Next Hadith → My mother intended to make me gain weight to send me to the (house of) the Messenger of Allah (ﷺ). But nothing which she desired benefited me till she gave me cucumber with fresh dates to eat. Then I gained as much weight (as she desired).

Sunan Abi Dawud Book 29, Hadith 49