Swearing to fast for three years if she rode in her husband's car and then the husband forcing her to do

Q 1: While out in the desert, a man and his wife quarreled. After quarrel, the wife said to her husband, "I would fast for three years if I were to ride your car or walk with you." The man replied, "I will not leave you alone in the desert. Get into the car and I will pay the Kaffarah (expiation) on your behalf." Thereupon, she got into his car and walked with him. What should the wife and her husband do in this case? Please, advise! (Part No. 23; Page No. 142) May Allah reward you with the best!

A: If the case is as you mentioned; the wife vowed to fast for three years if she were to get into the car or walk with her husband and then broke her vow, she should offer Kaffarah and her husband should carry out this Kaffarah on her behalf in fulfillment of his promise.The Kaffarah is to feed ten needy persons five Sa`s (1 Sa` = 2.172 kg) of wheat, dates, rice or the like average meal that he feeds his family, giving each of the ten persons`; clothe ten needy persons or emancipate a believing bondsman. It is permitted for him to do any of these things; but if he is unable to do any of them, the wife should fast for three days. It is preferable that she fasts these days consecutively. She does not have to fast for three years, as such talk comes under the ruling of the oath.May Allah grant us success. May Allah's Peace and Blessings be upon our Prophet Muhammad, his family, and Companions!