Is it permissible to break one's vow fast – Mondays and Thursdays for life – if one falls ill, and is it obligatory to make up for the days that were broken due to fatigue, illness, or menstruation?
Source: FtawySummary from Ftawy's records · added here Sep 2, 2026
A vow of obedience must be fulfilled, for the Prophet, peace and blessings be upon him, said: "Whoever vows to obey Allah, let him obey Him; and whoever vows to disobey Allah, let him not disobey Him." Narrated by Al-Bukhari. There is no sin in not fasting during illness or menstruation, but these days must be made up.
Summary from Ftawy's records · added here
Reviewed by El Fatwa's sharia committee.
Read the full answer on Ftawyhttps://ftawy.com/en/questions/50573
Where this answer came from
- Source platform
- Ftawy
- Original fatwa ID
- 50573
- Added here
- . This is when the answer was added to El Fatwa, not the fatwa's date.
- Text
- Summary from Ftawy's records, reviewed by El Fatwa's sharia committee.
- Read the full ruling
- Read the full answer on Ftawy