Study Ketubot folio 96A with parallel Hebrew-English text, traditional commentary, and modern study tools. Free access to Babylonian Talmud online.
The Talmud suggests: Come and hear a proof from that which R' Zeira said that Shmuel said: Any lost article found by the widow she acquires for herself. Granted, if you say that we learned in the Mishnah: A widow who is sustained, Shmuel’s principle is well understood. Then, according to the Mishn
The Talmud rejects this proof: Actually, I will say to you that we learned in the Mishnah: A widow is sustained, and this does not contradict Shmuel’s statement. What is the reason that the rabbis said that any lost article found by the wife belongs to her husband? It is so that she should not be
R' Yosei bar Ḥanina said: All tasks that a wife performs for her husband, a widow performs for the husband’s heirs, except for filling his cup; and making his bed; and washing his face, hands, and feet, which are expressions of affection that a woman performs specifically for her husband.
R' Yehoshua ben Levi said: All tasks that a Canaanite slave performs for his master, a student performs for his teacher, except for untying his shoe, a demeaning act that was typically performed by slaves and would not be appropriate for a student to do.
Rava said: We said this only if the teacher and the student are in a place where people are not familiar with the student and he could be mistaken for a slave. However, in a place where people are familiar with the student, we have no problem with it as everyone knows that he is not a slave. Rav Ash