Philosophers have presented different views about the whatness and truth of the soul based on dualism (immateriality of the soul based on the pre-eternity and origination of the soul before the existence of the body or along with it) or monism (corporeal origination of the soul). Mullā Ṣadrā believes that the soul is corporeally originated. The principles of the Transcendent Philosophy, including the trans-substantial motion, the principiality and gradedness of being, and the corporeal origination of the soul, have made it possible to demonstrate corporeal resurrection. Aristotle also believes that the origination of the soul is corporeal. However, the extent to which Mullā Ṣadrā is influenced by Aristotle’s ideas in this regard has never been studied so far. This paper is intended to explain the Aristotelean roots of Mullā Ṣadrā’s discussion of corporeal origination following a comparative-analytic method. The findings of this study indicate that in defining the soul as a “natural and organic body” and, following it, considering the soul as a formal substance and a primary perfection of the body, as well as believing in the unitary synthesis of the body and the soul and the unity of the faculties of the soul, all indicating the corporeal origination of the soul, Mullā Ṣadrā is under the influence of Aristotle. Nevertheless, Aristotle’s approach suffers from some ambiguity because of the existing implicitness in some of his words and not referring to an explicit standpoint regarding the principiality of existence or quiddity, presence of motion in substance, and gradedness of existence.