Followers of Islam believe that Muhammad descended from?

Muslims often refer to Muhammad as Prophet Muhammad, or just The Prophet or The Messenger, and regard him as the greatest of all Prophets. He is seen by Muslims as a possessor of all the virtues. As an act of respect, Muslims follow the name of Muhammad by the Arabic benediction sallallahu 'alayhi wa sallam ("Salutations of God and Peace be upon him," sometimes abbreviated "S. A. W."), a practice instructed by Qur’an and Hadith.