He said to his attendant: Take me away from here, as this man, Rabbi Yehuda Nesia, does not desire to learn but is instead raising difficulties that are easily resolved. And what is the reason he does not receive a double portion? Abaye said: The verse concerning the double portion received by a firstborn son states: “By giving him a double portion of all that he has” (Deuteronomy 21:17), indicating that he receives a double portion in all that he has, but not in all that she has.

The Gemara asks: And why not say that this statement applies in the case of a bachelor who married a widow, i.e., a man who marries a woman who already has children from another man, so that the firstborn son is his firstborn but not hers, but in the case of a bachelor who married a virgin, so too the halakha will be that their firstborn son will take a double portion of his mother’s inheritance?

Rav Naḥman bar Yitzḥak said: There is a different derivation teaching that halakha, as the same verse states: “For he is the first fruits of his strength [ono]” (Deuteronomy 21:17), indicating that the halakha of the double portion is stated with regard to his strength, but not her strength, thereby excluding a son who is the firstborn of his mother alone.

The Gemara challenges: But that verse is required to derive the halakha of a child who came into the world after his mother gave birth to non-viable newborns who did not reach the full term of nine months. This verse teaches that such a firstborn son should be a firstborn with regard to inheritance, even though he is not a firstborn with regard to the mitzva to redeem one’s firstborn son. How is this halakha derived from the verse? The term “his strength [ono]” is understood as referring to acute mourning [aninut], in the following manner: A firstborn son for the purpose of inheritance of land is only one whose father’s heart is pained about him when he dies, i.e., a son who lives beyond birth, excluding this non-viable newborn whose father’s heart is not pained about him when he dies. Therefore, the next viable son to be born after a non-viable newborn is considered the firstborn.

The Gemara answers: If so, that the sole purpose of the term: “His strength” is to teach that halakha, let the verse say: For he is the first fruit of strength [on], omitting the possessive “his,” represented by the letter vav. What is derived from the more expanded term: “His strength [ono],” which indicates specifically the father’s strength? Conclude two conclusions from it, both with regard to mourning and with regard to the status of the firstborn as the father’s heir specifically.

The Gemara raises a difficulty: But one can still say that this statement applies in a case of a widower who married a virgin, so that he already has a firstborn from his previous marriage who is the first fruit of his strength. And the son born to him and his second wife is not the first fruit of his strength, and it is this type of firstborn who does not inherit a double portion of his mother’s estate. But in a case of a bachelor who married a virgin, so too the halakha will be that their shared firstborn son will take a double portion of his mother’s inheritance.

Rather, Rava said: There is a different derivation teaching that halakha, as the same verse states: “The right of the firstborn is his” (Deuteronomy 21:17). The emphasis on “his” indicates that the primogeniture applies specifically to a man, and the primogeniture does not apply to a woman, whether the woman is the one inheriting or is the legator.

§ The mishna teaches: And a man with regard to his wife inherits but does not bequeath. The Gemara asks: From where are these matters derived? The Gemara explains: As the Sages taught in a baraita: The verse concerning inheritance states: “And if his father has no brothers, then you shall give his inheritance to his kinsman [she’ero] who is next to him of his family, and he shall inherit it” (Numbers 27:11). This kinsman is one’s wife, and the Torah teaches that a husband inherits from his wife, as the Gemara will explain later. One might have thought that she would also inherit from him; therefore, the verse states: “And he shall inherit it,” with the word “it” written in the feminine “otah,” which can also be translated as: Her. This teaches that it is he who inherits from her, but she does not inherit from him.

The Gemara questions this explanation: But the verses are not written like this. The verse states that “his kinsman” inherits from the deceased, so that if that term is referring to one’s wife, a wife should inherit from her husband. Abaye said: Answer like this, i.e., as if the verse were split into two parts. The first part is: Then you shall give his inheritance to he who is next to him, which is a general statement with regard to the inheritance of relatives. The second is: His kinsman, and he shall inherit it, meaning that a husband inherits from his kinsman, referring to his wife.

Rava said: Does a sharp knife cut verses? How can you split the verse, rearrange it and omit letters from its words? Abaye’s derivation rearranges the words and omits the letter lamed from the term “to his kinsman [leshe’ero].” Rather, Rava said: This is what the verse is saying: And you shall give the inheritance of his kinsman [she’ero] to him. The letters should be arranged differently, removing the letter lamed from the word leshe’ero and the letter vav from the word naḥalato and combining them to form the word lo, meaning: To him. Accordingly, the verse teaches that a husband inherits from his wife. The Gemara explains that Rava holds that the Sages subtract and add and interpret homiletically, meaning that letters can be removed from words and appended to each other, and a halakha can be derived from the new word formed by the combination of letters.

The Gemara comments: And this tanna cites the halakha that a husband inherits from his wife from here, as it is taught in a baraita: “And he shall inherit it,” with the word “it” written in the feminine “otah,” which can also be translated as: Her. This teaches that a husband inherits from his wife; this is the statement of Rabbi Akiva, similar to the derivation cited in the baraita above.

The baraita quotes another tanna. Rabbi Yishmael says: This derivation is not necessary, as the verse states: “And every daughter who possesses an inheritance from the tribes of the children of Israel shall be wife to one of the family of the tribe of her father” (Numbers 36:8). The purpose of this mitzva was so that the land she inherited from her father’s tribe will not be transferred to another tribe upon her death. The verse speaks of a transfer of inheritance from one tribe to another by means of the husband, i.e., she must not marry a man from another tribe so that the land will not be transferred to that tribe when her husband inherits from her upon her death. This indicates that a husband inherits from his wife.

Rabbi Yishmael continues: And another verse states: “So shall no inheritance of the children of Israel transfer from tribe to tribe” (Numbers 36:7), and another verse states: “So shall no inheritance transfer from one tribe to another tribe” (Numbers 36:9), also indicating that a husband inherits from his wife.

Rabbi Yishmael continues: And the verse in the Prophets states: “And Elazar, the son of Aaron, died; and they buried him in the Hill of Pinehas his son, which was given him in Mount Ephraim” (Joshua 24:33). And from where did Pinehas have land that his father, Elazar, did not have? Rather, this teaches that Pinehas married a woman who inherited her father’s land, and she died and he inherited from her so that he had his own land. This also indicates that a husband inherits from his wife.

Rabbi Yishmael continues. And the verse in the Writings states: “And Seguv begot Yair, who had twenty-three cities in the land of Gilead” (I Chronicles 2:22).