It is performed daily, before sunrise, with hair covered and after evacuation of bowels, or before religious ceremonies.
[2][3]: 16 Tamasha (ṭamaša) is another type of ablution performed by Mandaeans in which the entire body is fully immersed three times in water.
[1] Although the term for the Mandaean daily minor ablution is also spelled the same in written Classical Mandaic (rišama), the word for 'minor ablution' is pronounced in Modern Mandaic as rešāmā, while 'head priest' is pronounced rišammā.
Below is a list of rishama procedures by Shadan Choheili of the Ganzibra Dakhil Mandi in Liverpool, New South Wales, Australia.
John D. Turner and other scholars have noted that in Sethianism, rituals reminiscent of Mandaean ablutions (i.e., the rishama and tamasha) are mentioned in Nag Hammadi texts such as the Trimorphic Protennoia, since they involve triple immersion in water, signing, and other similar features.