Does a mother who, in her youth, ignorantly missed some days of fasting intend to make up those days, or to fast voluntary days such as Mondays and Thursdays?

She must count the days she missed and make them up with the intention of making them up, until she is certain that she has made up all that is due from her. And she should feed a poor person for each day, as a precaution and to avoid disagreement, if she is able. If she fasts on Mondays and Thursdays, she should intend it as making up what is due from her. Shaykh Al-Fawzan mentioned that whoever left fasting out of ignorance should repent and make up the days, and feed a poor person for each day if another Ramadan arrives and she has not fasted those days.