Yusuf b. ‘Abdallah b. Salam said he saw the Prophet take a piece of barley bread and put a date on it. Saying, “This is the condiment of this,” he ate it.
The Prophet came in to visit me and asked whether I had anything. When I replied that I had nothing but some dry bread and vinegar he said, “Produce it; a house in which there is vinegar is not devoid of condiments.”
Tirmidhi transmitted it, saying this is a hasan gharib tradition.
When I was ill the Prophet came to visit me, and putting his hand between my nipples so that I felt its coolness on my heart, he said, “You are suffering from a heart disease. Go to al-Harith b. Kalada who belongs to Thaqif, for he practices medicine, and get him to take seven of the 'ajwa dates of Medina and pound them together with their stones, then administer them to you.”