 one of them is that if possibility calls for something existing that is added to it and is said to be its possibility then impossibility calls for something existing that is said to be its impossibility. and the impossible has no existence in itself and no matter upon which the impossible is added so that impossibility is added to the matter.
أحدها أن الإمكان لو استدعى شيئا موجودا يضاف إليه ويقال إنه إمكانه لاستدعى الامتناع شيئا موجودا يقال إنه امتناعه، وليس للممتنع وجود في ذاته ولا مادة يطرى عليها المحال حتى يضاف الامتناع إلى المادة.