The Islamic belief about God/Allah is that he is uncreated.
What does that mean?
Everything in the world is created in need of space and time to exist. And everything here has a beginning and an end.
So God has no being nor an end because he is uncreated. God does not need anything to exist unlike creation who needs God to exist.
When people try to understand God they to use what they know about the world around them and then apply to God.
This does not work because is unlike anything else. Its like a television tring to understand man. How can it? When it was not created to do that!