The issue of unity or difference between Al-Hāwi Fi al-Tibb and Al-Jāmi Al-Kabir of Muhammad ibn Zakariya Al-Razi: A study based on Evidence

Mohammad ibn Zakariya Al- Razi is one of the most famous Physicians in Islamic Civilization, Who his opinions and works have an important place in History of medicine. Al- Hawi fi Al-Tibb is his most famous work that sometimes has been considered as same Al- Jami' Al-Kabir. The importance of Al-Hawi in History of Medicine Studies has made it necessitated to examined its unity or difference with Al-Jami' Al-Kabir. Ibn Abi Usaybaa and Al-Qifṭī (Among Classic Writers) and Albert Iskandar, Mehrnaz Katuzian and Sami Hamarneh (Among Recent writers), distinguish between these two books. Nevertheless however, the study of other Al- Razi's works, other works of Islamic medicine and the Islamic Bibliographic books shows that we cant demonstrate exactly that Al- Hawi and Al- Jami are one work, although our evidences for their unity is more. This Article attempts to show there are some differences and similarities between these two works based on evidences.