What is the ruling on vowing to fast the month of Sha’ban consecutively for 32 years if the woman who made the vow has become afflicted with diabetes and high blood pressure and is unable to fast, knowing that she had previously fasted one month intermittently?

If the mother vowed to fast a specific Sha'ban and did not fast it, then according to the majority of scholars, she must make up for it (qada'). The Hanbalis add that she must also offer an expiation for breaking an oath (kaffarat yameen). However, the Malikis do not believe anything is due from her if she missed the fast due to a valid excuse. If qada' becomes obligatory, she may fast in any month. If she vowed to fast Sha'ban without specifying which one, then she may fast any Sha'ban. And if she is unable to fast, she may delay it until the next Sha'ban.