Abstract This article offers an editio princeps of al-Ḥasan al-Raṣṣāṣ’s Masʾala fī kayfiyyat wujūd al-aʿrāḍ . In this text, al-Raṣṣāṣ argues in accordance with the Bahshamī theory that not all accidents need a substrate ( maḥall ). Although most depend on atoms as their locus inherence, there are three exceptions: accident “annihilation” fanāʾ ), whose existence is inconceivable, and “will” irā...
