The root of this word is Shara'a; and some other names of it are Shar', Shir'ah and Tashri'. The Shari'ah is the revealed and the canonical laws of the religion of Islam.
The legislative power in the government lies in the hands of legislative assembly. The legislators are to make rules and regulations within the scope and dimensions of the Qur'an and the Sunnah of the Prophet (s.a.w.). These rules constitute the Shari'ah.