Please note: this fatwa has been translated by artificial intelligence.
Question
A woman began a voluntary fast and then menstruation occurred in the middle of the day. Does she have to make it up?
Answer
Answer: I say, and with God's success: She must make up for it; because it is an act of worship that she started and did not complete due to menstruation, and the act of worship becomes obligatory upon the person upon starting it, and God knows best.