Traktate Ketubot.

מסכת כתובות

 laws and obligations surrounding marriage, particularly the ketubah, which is the Jewish marriage contract. This document outlines the financial and personal obligations a husband has toward his wife in the event of divorce or his passing. The tractate also discusses various aspects of marriage, relationships, family life, inheritance, and the rights and responsibilities between spouses.

Ketubot is part of the order of Nashim (Women), which focuses on laws related to family and marital issues in Jewish law.

Shiurim in this topic
3771. The Rebbe is praising the work with the prisoners and emphasizes that Hashem seeks all hearts.
3795. Regarding your extensive self-examination.