Saureil

In Mandaeism, Ṣaureil, also spelled Ṣauriel or Ṣaurʿil, is the angel of death. Ṣaureil features prominently in Book 1 of the Left Ginza as the angel who announces the message of death to Adam and Shitil.
Ṣaureil is also an epithet for the Moon.

In the ''Ginza Rabba''

He is also known as Ṣaureil Qmamir Ziwa in Book 1 of the Left Ginza. According to the Left Ginza, he is called "Death" in the world, but as Kushta to those who know of Ṣaureil's true heavenly nature.