A person lawfully invested with the power, and charged with the duty, of taking care of a person and/or managing the property rights of another person. Guardians are typically used in three situations; for an incapacitated senior (due to old age or infirmity), for a minor and for developmentally disabled adults.

The Islamic legal system derived from the religious precepts of Islam, particularly the Koran and the Hadith. It is an Arabic language term meaning a body of moral and religious law derived from religious prophecy.