 Rabbi Judah said that a single-grape cluster was a cluster, but the Sages said that it was a defective cluster (and thus belonged to the poor).The Mishnah taught that if a wife foreswore all benefit from other people, her husband could not annul his wife's vow, but she could still benefit from the gleanings, forgotten sheaves, and the corner of the field that and and commanded farmers to leave for the poor.Tractate Yevamot in the Mishnah, Tosefta, Jerusalem Talmud, and Babylonian Talmud interpreted the laws of levirate marriage (, "yibbum") in 

Interpreting the laws of Levirite marriage (, "yibbum") under the Gemara read to address a Hebrew slave who married the Master's Canaanite slave, and deduced from that the children of such a marriage were also considered Canaanite slaves and thus that their lineage flowed from their mother, not their father.