The Prophet received the revelation should deliver but do not have liability for certain people or certain areas. While, the word "apostle" comes from the word meaning submission Risala. Therefore, the apostles, after first appointed as a prophet, tasked with delivering revelation obligation upon a people or a particular region. Of all the apostles, Muhammad as the "Seal of Prophets' which gets an official title in the Qur'an Allah is the only one whose duties include the people and the whole region of the universe 'Rahmatan lil Alamin'.
Believe in the prophets and apostles is the fourth pillar of faith in Islam.
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