Chapter 29: Medicine (Kitab Al-Tibb)
Narrated Umm al-Mundhar bint Qays al-Ansariyyah: The Messenger of Allah (ﷺ) came to visit me, accompanied by Ali who was convalescing. We had some ripe dates hung up. The Messenger of Allah (ﷺ) got up and began to eat from them. Ali also got up to eat, but the Messenger of Allah (ﷺ) said repeatedly to Ali: Stop, Ali, for you are convalescing, and Ali stopped. She said: I then prepared some barley and beer-root and brought it. The Messenger of Allah (ﷺ) then said: Take some of this, Ali, for it will be more beneficial for you. Abu Dawud said: The narrator Harun said: al-Adawiyyah (i. e. Umm al-Mundhar).
Sunan Abi Dawud 3856