Ritual purification is a ritual prescribed by a religion through which a person is considered to be freed of uncleanliness, especially prior to the worship of a deity, and ritual purity is a state of ritual cleanliness. Ritual purification may also apply to objects and places. Ritual uncleanliness is not identical with ordinary physical impurity, such as dirt stains; nevertheless, body fluids are generally considered ritually unclean.

Obligatory Baháʼí prayers are prayers which are to be said daily by Baháʼís according to a fixed form decreed by Baháʼu'lláh. Prayers in the Baháʼí Faith are reverent words which are addressed to God, and refers to two distinct concepts: obligatory prayer and devotional prayer. The act of prayer is one of the most important Baháʼí laws for individual discipline. Along with fasting, obligatory prayer is one of the greatest obligations of a Baháʼí, and the purpose of the obligatory prayer is to foster the development of humility and devotion. The obligation of daily obligatory prayer was prescribed by Baháʼu'lláh, the founder of the Baháʼí Faith, in his book of laws, the Kitáb-i-Aqdas.