Sunnah (, , , plural ) is the verbally transmitted record of the teachings, deeds and sayings, silent permissions (or disapprovals) of the Islamic prophet Muhammad, as well as various reports about Muhammad's companions. Along with the Quran (the holy book of Islam), the Sunna makes up the two primary sources of Islamic theology and law. The Sunna is also defined as "a path, a way, a manner of life"; "all the traditions and practices" of the Islamic prophet that "have become models to be followed" by Muslims.