Gittin 35A

משום חינא אקילו רבנן גבה, קא משמע לן.

Due to the increased desirability that this would bring her when trying to remarry, since this would ensure she would bring assets with her into a new marriage, the rabbis were lenient with her, as the rabbis issued several decrees in connection with the marriage contract in order to enable women to collect more easily. Therefore, the Mishnah teaches us that this is not the case.

נמנעו מלהשביעה: מאי טעמא? אילימא משום דרב כהנא ⁠– דאמר רב כהנא; ואמרי לה אמר רב יהודה, אמר רב: מעשה באדם אחד בשני בצורת, שהפקיד דינר זהב אצל אלמנה; והניחתו בכד של קמח, ואפאתו בפת, ונתנתו לעני;

§ The Mishnah taught that the court refrained from administering an oath to her. The Talmud asks: What is the reason that they refrained from administering oaths to widows? If we say that it is because of the statement of Rav Kahana, as Rav Kahana says, and some say that it was Rav Yehuda who says that Rav says: There was an incident involving a person during years of famine who deposited a gold dinar with a widow, and she placed the gold dinar in a jug of flour and unwittingly baked it in a loaf of bread along with the flour, and she gave the bread as charity to a poor man.

לימים בא בעל הדינר, ואמר לה: הבי לי דינרי. אמרה ליה: יהנה סם המות באחד מבניה של אותה אשה, אם נהניתי מדינרך כלום! אמרו: לא היו ימים מועטין עד שמת אחד מבניה; וכששמעו חכמים בדבר, אמרו: מה מי שנשבע באמת ⁠– כך, הנשבע על שקר ⁠– על אחת כמה וכמה.

After a period of time, the owner of the dinar came and said to her: Give me my dinar. She said to him: May poison benefit, i.e., take effect on, one of the children of that woman, i.e., my children, if I derived any benefit from your dinar. It was said: Not even a few days passed until one of her children died, and when the rabbis heard of this matter, they said: If one who takes an oath truthfully is punished in this way for sin, one who takes an oath falsely, all the more so.