Nedarim

MISHNAH. [IN THE CASE OF] A BOGERETH WHO TARRIED TWELVE MONTHS, AND A WIDOW [WHO TARRIED] THIRTY DAYS,  — R. ELIEZER SAID; SINCE HER [BETROTHED] HUSBAND IS RESPONSIBLE FOR HER MAINTENANCE, HE MAY ANNUL [HER VOWS]. BUT THE SAGES SAY: THE HUSBAND CANNOT ANNUL UNTIL SHE ENTERS INTO HIS CONTROL. GEMARA. Rabbah said: R. Eliezer and the early Mishnah  taught the same thing. For we learnt; A virgin is given twelve months to provide for herself.  When the twelve months expire,  she must be supported by him [i.e., her arus] and may eat terumah.  But the yabam  does not authorize her to eat terumah.  If she spent six months in the lifetime of  her husband [the arus], and six months in that of the yabam,  or even the whole period less one day in the lifetime of her husband, or the whole period less one day in that of the yabam, she may not eat terumah: this is the early Mishnah. But a subsequent Beth din  rules: No woman can partake of terumah until she enters the huppah.  Said Abaye to him, Perhaps it is not so. The early Mishnah informs us in respect of [her] eating terumah, which is [forbidden merely by] a Rabbinical enactment;  but as for vows, which are Biblically binding, I may say that it is not so. And you know R. Eliezer's view  only in respect to vows for the reason which R. Phinehas said in Raba's name, viz.: Every [woman] who vows, vows conditionally upon her husband's assent.  But as for terumah, it may well be that though [forbidden only by] a Rabbinical precept,  she may not eat thereof.