five pillars islam salat preceded ritual ablution usually performed five times day consists repetition unit called ''rak ah'' pl ''raka t'' consisting prescribed actions words number obligatory ''fard'' ''raka t'' varies two four according time day circumstances friday congregational worship two rakats prayer obligatory muslims except prepubescent menstruating puerperium stage childbirth judaism jewish liturgy prayer recitations form part observance rabbinic judaism
Applied science Divinity Field ministry Liturgy