The work he was most known for was his, Tashrīḥ-i badan-i insān (, "The Anatomy of the Human Body") (MS P 19), also known as "Mansur's Anatomy" ( "Tashrīḥi Manṣūri") Commissioned by Zayn al-Abidin (), an important political figure in being the last Muzaffarid ruler of Fars, Mansur's Anatomy is a medical treatise of about forty manuscript folios. It consists of seven sections: an introduction, five chapters covering the osseous, nervous, muscular, venous, and arterial systems, and an appendix on the formation of the fetus and compound organs, such as the heart. Instead of discussing interrelated functions of organs, he discussed organs based on their hierarchical ordering of functionality-related groups according to their importance to the life of the body. In this manner he discussed the anatomy of the vital and respiratory organs, and then the anatomy of the organs of nourishment, perception, and finally, reproduction. A concluding section on compound organs, such as the heart and brain, and on the formation of the fetus, was illustrated with a diagram showing a pregnant woman. Mansur's Anatomy is chiefly recognized for its inclusion of such colored anatomical illustrations, the first of its kind in the Arabic world.