This note extends from the Argument for the Contingency of the World.
The world is emergent and contingent. “World” is all that exists except for Allah. Meaning, everything is created except Allah. Whatever is created is emergent (has a beginning), and it is subject to change (it is contingent).
The beings of the world are bodies that accept change, and acceptance of change is evidence of their being attributed with accidents, and being attributed with accidents is proof for their emergence (beginning). Thus, the occurrence of change in the world is how we come to know of its beginning. See also: Body (jism), Accident (‘Arad), Atoms (Jawahir).
Notice that each accident is emergent by virtue of what it is. This is because the existence of accidents is not necessary for the beings they are attributed to. And whatever does not exist necessarily, exists contingently.
Moreover, the occurrence of change is proof that the changing being is attributed with accidents. For change is nothing more than a transitioning from being attributed with one accident, to being attributed with another accident. When the first accident ceases to exist, the second emerges into existence.
For example: a body that changes from rest to motion, transitions from being attributed with rest, to being attributed with motion. When rest ceases to exist, motion then emerges into existence. This is called Proof for the Emergence of Bodies (Burhan Huduth al-Ajsam).