A famous Persian physician. Born in Ahwaz, he flourished under the Buwayhid Sultan Adhud al-Dawla. He died in 994. He is considered one of the three greatest physicians of the Eastern Caliphate of his time. Among his important books a medical encyclopaedia called Al-Kitab al-kamil as-sina'a at-tibbiyya (The Complete Book of the Medical Art), known also as Al-Kitab al-Maliki, title under which it was translated into Latin as Liber regalis. Another title given to the work is the Lber pantegni in a version rendred by Constantin theAfrican.
The Maliki is divided into 20 discourses, of which the first half deal with theory and the other with the practice of medicine. Some examples of topics covered are dietetics and materia medica, a rudimentary conception of the capillary system, interesting clinical observations, and proof of the motions of the womb during parturition (e.g. the child does not come out; it is pushed out).
See Charles Burnett and Danielle Jacquart (Editors), Constantine the African and 'Ali Ibn Al-'Abbas Al-Magusi: The Pantegni and Related Texts (Leiden: E. J. Brill, 1995); A. Kaadan, "Genital Tract Diseases as Viewed by Ali Ibn al-Abbas al-Majusi" (in Arabic).