Hisham ibn 'Urwa said: 'Urwa said to 'Aishah: Oh Mother! I am not surprised at your understanding – I said: She's the Messenger of Allah's (SAW) wife and the daughter of Abu Bakr; and I am not surprised at your knowledge of poetry and the life and times of people – I said: She's Abu Bakr's daughter, and he was the most knowledgeable of people (or among the most knowledgeable of people). But I am surprised at your knowledge of medicine – how do you know so much and from where? And she slapped him on the shoulder and said: Oh little 'Urwa! Indeed the Messenger of Allah (SAW) grew weak from illness near the end of his life (or at the end of his life), and groups of Arabs would come to him from all around and prescribe treatments for him, and I would give him the treatments – that's where.