Nedarim 66B

תנא: שן תותבת היתה לה, ועשה לה רבי ישמעאל שן של זהב משלו. כי שכיב רבי ישמעאל, פתח עליה ההוא ספדנא הכי: ״בנות ישראל על רבי ישמעאל בכינה המלבישכן וכו׳״.

It was taught: She had a false tooth [shen totevet], which disfigured her, and R' Yishmael made her a gold tooth from his own money, thereby beautifying her. When R' Yishmael died, a certain eulogizer began his eulogy about him like this: Daughters of Israel, weep for R' Yishmael, who clothed you.

ההוא דאמר לה לדביתהו ״קונם שאי את נהנית לי עד שתטעימי תבשילך לרבי יהודה ולרבי שמעון״. רבי יהודה טעים, אמר, קל וחומר: ומה לעשות שלום בין איש לאשתו אמרה תורה שמי שנכתב בקדושה ימחה על המים המאררים בספק, ואני על אחת כמה וכמה.

§ The Talmud relates: There was a certain person who said to his wife: Benefiting from me is konam for you until you have given R' Yehuda and R' Shimon your cooked food to taste, so they can see for themselves what a bad cook you are. She brought the food to them, and R' Yehuda tasted it, without concern for his honor. He said: This is an a fortiori inference: And what can be seen, that in order to make peace between a man and his wife, the Torah said: My name, that is written in sanctity, should be blotted out in the waters that curse, as the words written on a scroll, including the name of God, were blotted out during the ceremony of preparing the water that a sota would drink. And this is so even in a case of where it is uncertain if this will bring peace between them, as she may or not be guilty of adultery. I, all the more so, should waive my honor in order to bring peace to this couple.

רבי שמעון לא טעים, אמר: ימותו כל בני אלמנה, ואל יזוז שמעון ממקומו. ועוד: כי היכי דלא לתרגלי למינדר.

Conversely, R' Shimon did not taste. He said: Let all the children of the widow die, and Shimon will not budge from his place. In other words, the husband can die and leave his wife a widow and his children orphans, and let them die too, rather than have people belittle the dignity of Torah scholars by taking such vows. And furthermore, there is another reason for my refusal: So that they should not become used to taking vows.