Experts explain that voluntary fasting differs significantly from obligatory fasting. While fasting during Ramadan is mandatory and must not be broken بدون عذر، voluntary fasting is considered a recommended act of worship, rewarding those who perform it without penalizing those who do not complete it.
Some scholarly opinions suggest that making up the fast is required if it is broken, citing narrations that encourage fasting another day in its place. However, the majority of scholars hold that making up the fast is not obligatory but rather recommended.
According to the more widely accepted view, a person who breaks a voluntary fast does not incur sin and has the flexibility to either make up the day or leave it without compensation, both being acceptable.
