Does a blood test invalidate or break the fast, and are there certain verses – such as Ayatul-Kursi – that are not to be recited in prayer?
Source: FtawySummary from Ftawy's records · added here Sep 2, 2026
Taking blood from a fasting person for analysis does not invalidate the fast, but it is better to avoid it if it weakens them and causes them to break their fast or become too weak for worship. Reciting any verse from the Quran in prayer is permissible, including Ayatul-Kursi, for it is the greatest verse in the Book of Allah.
Summary from Ftawy's records · added here
Reviewed by El Fatwa's sharia committee.
Read the full answer on Ftawyhttps://ftawy.com/en/questions/77650
Where this answer came from
- Source platform
- Ftawy
- Original fatwa ID
- 77650
- 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