Related על כתובות 5:5

The work that a wife does for her husband: they counted seven core types of work and the rest they didn't need to count. If she brought in for him [a slave], whther his or hers, she doesn't grind or launder (sic!, inserted based on Ehrfurt manuscript). He cannot (sic!, אין in Ehrfurt) force her to do [any of these types of work] for his son, her daughter, his brothers, her brothers or to feed the animals. A place where it is not the custom to do any one of these things, he cannot force her. Rabbi Yehudah says: He also can't force her to work with flax since it lacerates the mouth and stiffens the lips. If she vowed to not nurse her son, Beit Shammai say: Remove her breast from his mouth! But Beit Hillel say: He can force her to nurse; if she is divorced, they cannot force her to nurse; if [she is divorced but] her son recognises her, they pay her wages and she nurses him because of the danger [to the child since he may not accept breast milk from another woman]. A man cannot force his wife to nurse the son of his fellow, and a wife can't force her husband [to allow her to] nurse the son of her fellow.