The seal of all the prophets was Prophet Muhammad (s.a.w.). This means that he was the last prophet sent by God to guide humanity, and that his message and teachings are meant to be followed until the end of time. Muslims believe that Prophet Muhammad (s.a.w.) was the final prophet because his message was complete and comprehensive, and because he was sent as a mercy to all of humanity. The concept of the seal of the prophets is an important tenet of Islamic belief and is mentioned in the Quran.