When the term muslim or islam or mohammed were not mentioned by Adam to Jesus, how can we treat them as muslim?

The word "Muslim" means one who submits to the will of God. The first principle of Islam is known as the Shahaadah (Testimony of Faith), and is as follows: "There is no one worthy of worship except Allaah (God) and Muhammad is the Final Apostle (Messenger) of God.” (Reference a href="http://www.islamweb.net/ver2/archive/article.php?lang=E&id=134495)" rel="nofollow"http://www.islamweb.net/ver2/archive/art…/a