Part 15 · Chapter 35

Afterwards, when the time of the redemption of Egypt arrived, on the tenth of the month, they took the Paschal lamb, to indicate that then she was a complete Partzuf, in the secret of back to back, of ten Sefirot; and therefore they took it on the tenth. And afterwards they waited five days, and his five [Sefirot] illuminated in her again; and then was the night of Passover, on the fifteenth of the month.