Kalba Savua Gives Rabbi Akiva Half His Wealth
After 24 years, Kalba Savua asks the great Rabbi Akiva to annul his vow, learns Rabbi Akiva is his son-in-law, and gives him half his money.
The first incident was when Rebbe Akiva returned home after 24 years. Not realizing that the great Rebbe Akiva was his son-in-law, Ben Kalba Savua went to see him. He asked Rebbe Akiva to annul his vow that he made many years earlier not to support his daughter. Rebbe Akiva annulled the vow and told Ben Kalba Savua that he was, in fact, his son-in-law. Ben Kalba Savua then gave Rebbe Akiva half of his money. (Kesuvos 63a)