Commentaire sur Josué 17:5

Ten portions of land fell to Menashe. Six portions went to the family divisions mentioned above, and four went to the daughters of Tselophchod, not because each of them was considered an individual family division but rather because they took these four portions: the portion of their father who was one of those who went out of Egypt; since according to the number of those who went out of Egypt was the land divided; the portion their father shared with his brothers in the property of their father, Cheifer, since he too was one of those who went out of Egypt; and since their father, Tselophchod, was the firstborn, he received two portions [of Cheifer’s property]; and an additional portion from their father’s brother who died in the wilderness, without children and they received the inheritance of his share. This was stated by our Sages in Bava Basra.¹Maseches Bava Basra 119A. It was unnecessary for Scripture to relate to us the number of the daughters’ share, except to teach us that they took the share of the firstborn, and to inform us that Eretz Yisroel was an actual inheritance to them [since it was considered] the actual possession of their fathers, for the firstborn does not receive an extra portion in potential property as he does in actual property.²A firstborn receives a double portion only of the property that actually belonged to his father, but not of the property that was only potentially his father’s. Regarding the inheritance of Eretz Yisroel, the portions that were destined for them were considered their actual possession and not just potential property. The daughters of Tzelophechod, therefore, were able to inherit that extra portion of their father.