A. The male and female angels:^[1]

There are angels who come from the level of Za and angels who come from the level of Malchus. Angels who come from Z”a have a masculine aspect, while angels who come from Malchus have a feminine aspect and are called daughters and Nukvin. It is the female angels who are responsible for surveying and judging the actions of the world.

[1] Torah Or p. 15A