The reason is that he wrote that she would be entitled to the additional amount only on the condition that he would marry her, and since he did not marry her, she is not entitled to the extra amount. The Gemara compares the respective opinions: The one who says that the husband does not have the right to her dowry holds in accordance with the opinion of Rabbi Elazar ben Azarya, and therefore he rules that just as a husband guarantees his wife an extra sum in her marriage contract only if they actually get married, the wife’s father also gives the dowry only on the condition that the couple marries. And the one who said that the husband does have the right to her dowry holds in accordance with the opinion of the Rabbis, because the document is fully in effect even before marriage.

The Gemara refutes this suggestion: No, everyone agrees that the halakha is in accordance with the opinion of Rabbi Elazar ben Azarya, and the explanation is as follows: The one who said that he does not have the right to the dowry clearly holds in accordance with the opinion of Rabbi Elazar ben Azarya, as stated above; and the one who says the husband does have the right to her dowry would distinguish between the two cases: Rabbi Elazar ben Azarya states that the marriage contract is not fully in effect until marriage only with regard to a bestowal from him to her, i.e., the extra sum that the husband adds to her marriage contract, as he wrote it for her only on the condition that he would marry her, and he did not intend to give her anything before she became his wife.

However, with regard to that which is given from her father to him, i.e., the dowry, even Rabbi Elazar ben Azarya concedes that the husband is entitled to this money, as the gift of a father is due to marriage, i.e., he wants the families to be joined in matrimony, and they have already become linked in marriage. The dowry given by the father has nothing to do with the transition from betrothal to actual marriage.

§ The mishna teaches that a husband is obligated to provide his wife with sustenance, redemption from captivity, and burial. The Sages taught in a baraita: The Rabbis instituted that a husband must provide his wife with her sustenance in exchange for his rights to her earnings, and similarly they decreed that a husband must tend to her burial in exchange for the fact that he inherits the dowry that she brought into the marriage and which is written in her marriage contract. Consequently, the husband may consume the produce of her property.

The Gemara expresses surprise at this last statement: Produce, who mentioned anything about that? The baraita did not previously mention produce at all, so how did it arrive at a halakhic conclusion with regard to produce? The Gemara explains that the baraita is incomplete, and this is what it is teaching: They instituted that a husband must provide his wife with her sustenance in exchange for his rights to her earnings; and it is his duty to provide her with redemption from captivity in exchange for his right to consume the produce of her property; and it is his obligation to attend to her burial in exchange for the fact that he inherits the dowry that she brought into the marriage and which is written in her marriage contract. Consequently, a husband may consume the produce of her property.

Although the Gemara has explained how the tanna came to speak about produce, the wording of the baraita remains problematic. What is the significance of the word consequently in this context?

The Gemara explains: Lest you say that the husband should not consume the produce but leave it so that if he requires funds to redeem his wife he will have them available, as, if he is not compelled to do so he will refrain from redeeming her, as he will be unwilling to spend his own money for that purpose; the tanna therefore teaches us that this arrangement is preferable, because sometimes the produce will not amount to the funds necessary to redeem her from captivity, and he would not redeem her if he was expected to use the funds produced by her property. Consequently, the Sages decreed that he consumes the produce immediately and that he must redeem her from his own funds if she is taken into captivity.

After analyzing the language of the baraita, the Gemara turns its attention to the halakha itself. But I can reverse these connections; why does the baraita say that a husband’s obligation to provide his wife with sustenance was instituted in exchange for his right to her earnings, as opposed to another of his rights, e.g., his right to consume the produce of her property?

Abaye said: The Sages instituted a common obligation in exchange for a common right, and they instituted an uncommon obligation in exchange for an uncommon right. In other words, the Sages instituted a husband’s obligation to provide his wife with sustenance, which is relevant on a regular basis, in exchange for his right to her earnings, which also applies regularly. The other obligations and rights of a husband are relevant less frequently.

§ Rava said: This tanna, in the baraita cited below, maintains that the obligation of a husband to provide his wife’s sustenance applies by Torah law, as it is taught with regard to the verse pertaining to a husband’s obligations toward his wife: “If he takes another wife for himself, her food [she’era], her clothing [kesuta], and her conjugal rights [onata], he shall not diminish” (Exodus 21:10). “She’era”; this is sustenance, and it likewise states: “Who also eat the flesh [she’er] of my people” (Micah 3:3). “Kesuta” is understood in its literal sense as referring to clothing. “Onata”; this is her conjugal rights, which is stated in the Torah, and so it says: “If you shall afflict [te’aneh] my daughters” (Genesis 31:50), which indicates that a husband may not deprive his wife of her conjugal rights.

The baraita continues: Rabbi Elazar says: “She’era”; this is her conjugal rights, and so it says: “None of you shall approach to any who is near [she’er] of kin to him, to uncover their nakedness” (Leviticus 18:6), which demonstrates that the word she’er is used in the context of sexual relations. “Kesuta” is understood in its literal sense as referring to clothing. “Onata”; this is sustenance, and so it says: “And He afflicted you [vayanekha], and made you suffer hunger, and fed you with manna” (Deuteronomy 8:3).