קבלה אויף שמואל א 2:19

3. The matter of Nefesh, Ruach, Neshama, etc. and its rabbinic subdivisions are discussed at length in Gate Four of Sha’ar HaP’sukim on the verse “His mother would also make a little robe for him” (I Samuel 2:19). Also explained in Gate Five of the Gate of the Mitzvot, Va’ychi, in the laws of mourning. And we will also add more that is new.