One of my relatives took oath that she will fast for 3 months if her so and so work is done. After that work is successfully done she is now thinking to keep those 3 months nafl fasts. I am worried about her health so I am suggesting that she keep some fasts and give kaffarah for some fasts. Like fast for 1 month and give kaffarah of 2 months. In this regard, I want to ask if it is permissible to do so. If yes, then what is the kaffarah for 1 fast? Please remember she has some medical issues and it may be detrimental for her health if she fasts for 3 months.
بسم الله الرحمن الرحيم
In the question mentioned above the fasts of three moths are mandatory on that woman. It shall not suffice to pay fidyah when she can fast. However, if she hasn’t conditioned it with three successive months then it shall not be mandatory to keep the fast of three months successively rather she may keep the fast with some intervals.
Allah knows Best!
Darul Uloom Deoband