Salam I've heard something along the lines of this for as to why god must be infinite
If this uncaused cause was finite then that means, that it's sustenance cannot be itself. All creation can't sustain itself it requires an external source to sustain itself. For example your lungs might internally sustain you but you need an external source (oxygen) to sustain those internal sources.If the uncaused cause is finite then it needs something else to constantly sustain it. All finite things come to an end.However this uncaused cause cannot be sustained by something else, otherwise it is not the uncaused cause. Hence the uncaused cause must be infinite in power in order to sustain itself internally. If this uncaused cause is infinite in power then it is omnipotent and hence it is god.
Finally, this uncaused cause must transcend all. Something that bought something else into existence must transcend its creation. If it was confined by the same abilities as the thing it creates, then it cannot create creation as it becomes creation since it is confined to the dimension of which it creates. The fact that this uncaused cause is prior to time space mass and energy shows that it transcends everything that exists and hence it is the one and truly transcendent being.
Also from a physics standpoint I believe that only an infinite being can expand something infinitely small (or nothingness) into something. Do you acknowledge the fact that the universe was infinitely small at one time and hence in order for the uncaused cause to expand from an infinitely small point (Big Bang) He has to be infinitely powerful.
Can someone critique these and add more points as to why god must be omnipotent
@Enlightened Follower @Abu-Jafar Herz@.InshAllah.