In 1974, Herbert Freudenberger introduced the phrase ‘Burnout in Healing Professional Workers’. Despite the existence of numerous investigations on physician burnout, only a few studies on its historical aspects can be found. This is the first research to present historical evidence on ‘physician burnout’ as pointed out in the book ‘Adab al-Tabib’ written by Ruhawi (9th century AD). He is shown to have an understanding of this concept by talking about job stress in his book, although he offers no exact equivalent definition for this state. In fact, finding an equivalent term to 20th century burnout in a book written a thousand years ago is almost impossible. Most interestingly, the same preventive strategies for physician burnout and its causes as those scientifically discovered in recent years can be evidenced to have been introduced by Ruhawi. Hence, ‘Adab al-Tabib’ is an outstanding work on physician burnout in the medieval era.