Sharīʿah

Sharīʿah, also spelled Sharia,  the fundamental religious concept of Islam, namely its law, systematized during the 2nd and 3rd centuries of the Muslim era (8th–9th centuries ce).

Total and unqualified submission to the will of Allah (God) is the fundamental tenet of Islam: Islamic law is therefore the expression of Allah’s command for Muslim society and, in application, constitutes a system of duties that are incumbent upon a Muslim by virtue of his religious belief. Known as the Sharīʿah (literally, “the path leading to the watering place”), the law constitutes a divinely ordained path of conduct that guides Muslims toward a practical expression of religious conviction in this world and the goal of divine favour in the world to come.

Aspects of the topic Sharīʿah are discussed in the following places at Britannica.

Articles from Britannica encyclopedias for elementary and high school students.

Shariʿah - Children's Encyclopedia (Ages 8-11)

The Shari’ah (also spelled Sharia) is a system of religious law in Islam. It was developed and written down by Muslim rulers during the AD 700s and 800s. Muslims believe that the Shari’ah expresses Allah’s (God’s) commandments, or rules, for the way a Muslim should live. In Arabic, the word shari’ah means "the path leading to the watering place."

Shariʿah - Student Encyclopedia (Ages 11 and up)

The Shari’ah (also spelled Sharia) is a system of religious law in Islam. It was developed and written down by scholars in the early centuries of the Muslim era (8th-9th centuries). Muslims believe that the Shari’ah expresses Allah’s (God’s) commandments, or rules, for the way a Muslim should live. In Arabic, the word shari’ah literally means "the path leading to the watering place."