A woman had a big problem between her husband and her brother-in-law's wife, and the husband shouted loudly and swore to his wife that if she left his house today, she would be out of his responsibility. The wife insisted on leaving, so her sister-in-law swore a strong oath that at six in the morning she would take her to her family's house, but she should stay home today to fulfill her husband's oath. The brother's wife kept saying, 'I swear by God, I will make my husband take you to your family's house at six in the morning, but stay home today,' and she repeated it several times. Of course, when midnight came, the couples reconciled, and the wife said: 'Okay, I don't want to go to my family's house anymore.' Now, what is the ruling on the oath of the brother's wife that she swore? Does she have to make an expiation or not?