Muhammad The Messenger of Allah The Relevance of his Prophethood Hardcover Edition. This booklet is the seventh in a series of publications based on a book titled, Muhammad, the Messenger of Allah. Each booklet covers an aspect of the Prophet's life, deeds and teachings and aims to provide a better understanding of Islam. This booklet also includes the conclusion of the substantive argument in this series about Prophet Muhammad SAW The Last Messenger of Allah SWT (God).