Dehwa Rabba

Dehwa Rabba (Classical Mandaic: ࡃࡉࡄࡁࡀ ࡓࡁࡀ, romanized: Dihba Rba, lit.

Mandaean priests spend the entire day performing prayers and masbuta until the afternoon, and also animals are slaughtered for consumption.

Before the sun sets, Mandaeans prepare food for the following day of Dehwa Rabba and also perform ṭmasha, or ritual immersion in water that does not require the assistance of a priest.

[4] At sunset, once the North Star appears in the sky, Mandaeans must stay inside their homes with their families for 36 hours.

[1] E. S. Drower has compared this period of isolation to the Babylonian festival Akitu and to the myth of Dumuzid's descent into the underworld and his subsequent ascent after three days.