What is the difference between Prophets and Messengers?

Question 530: What is the difference between prophets and messengers?

Answer: A Prophet is the one to whom Allaah revealed Shar` (Law) but he was not commanded to convey it. A Messenger is the one to whom Allaah revealed Shar` (Law) and Allaah sent him to the people to call them to the Sharee`ah (Islaamic laws) and rulings revealed to him..read more here.