1512 "A witness from Himself"', i.e., the Book which was given to al Mustafa, the Holy Qur'an, which is compared to the original Revelation given to Moses. We make no difference between one true and genuine Message and another, nor between one prophet and another—for they all come from the One True God. 1513 "Guide": the Arabic word here is Imam, a leader, a guide, one that directs to the true Path. Such a direction is an instance of the Mercy and Goodness of Allah to man. The Qur'an and the Prophet Muhammad are also called, each, a Guide and a Mercy, and so are these epithets applicable to previous Books and Prophets.