Yes. It is our profound faith that ALLAH IS the only God and Prophet Mohammed is His prophet (messagner) and not the only prophet.
This is what Islam teaches us to belive. And we are not forcing you to accept this. If you want you can adopt, you don't want you can have your own God(s) and there is no clash.
Not only Prophet Muhammed, all prophets who preceeded him also started and ended with the same message that is ALLAH IS THE ONLY GOD.
That is what Muhammed started and ended with during his time.
And the same Prophet Muhammed only taught us through Quran that YOUR RELIGION IS FOR YOU AND MY RELIGION IS FOR ME.
