Whoever Muhammad is displeased with has gone astray, if this is the case the life and validity of the prophet seem very important but examination of the prophet doesn't give one confidence.
The term “Allah.” Allah comes from the Aramaic compound term “al-ilah,” which means “the god.” It is a generic term for the highest god of the people, and in Arabia it was in use for centuries before Muhammad came on the scene. It was one of the 360 gods worshipped in the ka’aba in Mecca, and was the chief god for the Quraysh tribe, which was the tribe Muhammad belonged to. In the pre-Islamic time, Allah had three daughters, Al-At, Al-Uzza, and Al-Manat.