Study Niddah folio 45B with parallel Hebrew-English text, traditional commentary, and modern study tools. Free access to Babylonian Talmud online.
When he reaches majority he may have sex with her, and thereby acquire her as his full-fledged wife, and if he wished to divorce her he can then give her a bill of divorce without having to perform ḥalitza.
Mishnah: With regard to a girl who is 11 years and one day old, her vows are examined to ascertain whether she is aware of the meaning of her vow and in Whose name she vowed. Once she is 12 years and one day old and has grown two pubic hairs, which is a sign of adulthood, even without examination h
With regard to a boy who is 12 years and one day old, his vows are examined to ascertain whether he is aware of the meaning of his vow and in Whose name he vowed. Once he is 13 years and one day old and has grown two pubic hairs, even without examination his vows are in effect. And one examines his
Prior to that time, 11 years and one day for a girl and 12 years and one day for a boy, even if they said: We know in Whose name we vowed and in Whose name we consecrated, their vow is not a valid vow and their consecration is not a valid consecration. After that time, 12 years and one day for a g
Talmud: The Talmud asks: But since the Mishnah teaches: With regard to a girl who is 11 years and one day old her vows are examined, why do I need the Mishnah to further state: Once she is 12 years and one day old her vows are in effect? After all, by this stage she is already an adult. The Talmu