 Material and formal causes are considered as intrinsic to or immanent in their effects, efficient and final causes as extrinsic to their effects (Wisnovsky 2003b). While the philosophers examine each type of cause, they appear to devote greater attention to the latter pair, the efficient and final causes. Their accounts of these have therefore received more scholarly notice. Still, certain aspects of their accounts of Aristotle’s material and formal causes have been studied (Bertolacci 2002). Perhaps the most important of these is the doctrine of “corporeal form” (ṣūrah jismiyyah), which was developed to explain a defining feature of body: its receptivity to the three dimensions of length, breadth and depth (Hyman 1965; Stone 2001; Shihadeh 2014). However, their discussions of corporeal form contribute primarily to their accounts of substance, not causation. Their contributions to the philosophy of causation emerge from their discussions of the efficient and final causes.