The proof of God,is You,and all of creation,now you may be saying "But How?"
Well let me make a point.
If we look into the argument of contingency, everything in scope of our universe is contingent but however,something out of the scope and time is not contingent,because it is something we cannot comprehend ever,only this uncontingent being has the knowledge of itself, and now why? Because our Brains are limited to the scope of what we know.
It is limited to the scope of what we can see,
Now to my proof, we can see nature exists,therefore Nature must be contingent.
But nature does not contradict,means its contingent upon 1 being which is uncontingent. If it was contingent,it would have made mistakes,
And now if we put this uncontingent being inline with the Islamic concept of God,it fits, so therefore the being that is not dependent upon anything is Allah himself. This is my interpretation on the name of Allah too,Al Waahid, i interpret this as the only being which is the reason of all existence,the only being that is not dependent upon anything