Musnad Ahmad

It is narrated from Sayyiduna Abu Rimthah (may Allah be pleased with him) that once I presented myself before the Prophet Muhammad (peace and blessings be upon him), and at that time, some people from the tribe of Rabi‘ah had come with a case of murder. The Prophet Muhammad (peace and blessings be upon him) said: "The giving hand is the upper hand. Give to your parents, siblings, and close relatives." Then the Prophet Muhammad (peace and blessings be upon him) looked and said: "Abu Rimthah, who is this with you?" I replied, "He is my son." The Prophet Muhammad (peace and blessings be upon him) said: "He is not responsible for your crime, nor are you responsible for his crime." Then I noticed that on the thin bone of the Prophet Muhammad’s (peace and blessings be upon him) shoulder, there was a raised piece of flesh the size of a camel’s dropping or a pigeon’s egg. I said, "O Messenger of Allah! Should I not treat it for you, as our family are physicians?" The Prophet Muhammad (peace and blessings be upon him) said: "The one who put it there will be the one to cure it."