It has often been assumed that the translation of Greek medical books into Arabic was the main determinant in establishing Islamic medicine. This assumption must be put into proper perspective. Because, it is certainly true that the Prophet Muhammad (s.a.w) inspired love and passion for learning and called upon mankind to develop their faculties and intellects. His teaching on medicine indicates that no student of history of Islamic medicine can ignore the importance of the Prophet’s sayings and practices in this regard. This leads us to accept the fact that the principles of medicine in Islam, as a whole, are deeply rooted in the Qur’an and Ahadith of the Prophet (s.a.w), although this Islamic medicine itself came into being, especially during the Abbasid period, as a result of the integration by Muslims of several older traditions of medicine, most importantly Greek.