A mother swearing never to visit her daughter who returned to her ex-husband

Q 1: I have a young daughter, whom I gave in marriage. After a while, there was a disagreement between her and her husband and she was declared to be Nashiz (a recalcitrant spouse) for a year. Due to the dispute between them and the husband's bad conduct, I swore by Allah (the Most Exalted) that if they got back together I would not greet the husband again and I would not enter their house. Later on, they reconciled and returned to each other. The husband came and greeted me forcibly, and, although I was not willing to do this, I do not want to sever my relationship with my daughter and I want to be able to visit her in her home and greet her husband. Please give me your Fatwa on this matter. Is it permissible for me to go to her house and greet her husband despite the oath I took not to do? Will I not be sinful if I do? What should I do? Please advise me, may Allah grant you the best reward!

A: You should visit your daughter and greet her husband to maintain the ties of kinship and avoid troubling your family relations. You should also perform a Kaffarah (expiation) for breaking your oath, which is to feed ten Miskin (needy) people or clothe them or free a believing slave. If you cannot do any of these things, you should perform Sawm (Fasting) for three days. The amount of food that you should give is five Sa`s (approximately fifteen kilograms) of wheat, rice, or dates to ten Miskin, receiving half a Sa` each. (Part No. 25; Page No. 285) May Allah grant us success. May peace and blessings be upon our Prophet Muhammad, his family, and Companions.