Things That Invalidate the Fast
Category 1 — Invalidation + Qada’ only (make up later):
- Eating or drinking by mistake (deliberate eating = qada’ + kafara in Maliki/Shafi’i)
- Vomiting deliberately
- Menstruation or postpartum bleeding beginning during the fast
- Cupping (hijama) — Hanbali/Maliki position; not held by Hanafi/Shafi’i
Category 2 — Invalidation + Qada’ + Kafara (expiation):
- Intentional eating or drinking during the fast while in full knowledge
- Sexual intercourse during the fast — kafara: free a slave, OR fast 60 consecutive days, OR feed 60 poor persons (in order — all madhabs agree on this kafara)
Madhab differences on injections:
- Majority (Hanafi/Maliki): IV/nutrient injections invalidate the fast (reaching the inside)
- Shafi’i/Hanbali: most injections do not invalidate (not through eating route)
- Contemporary fatwa: intravenous nutrition invalidates; standard medical injections generally do not
Things That Do NOT Invalidate the Fast
- Forgetfulness: “My community is forgiven for forgetfulness, mistake, and what they were compelled to do.” (Ibn Majah) If one eats forgetting they are fasting, the fast remains valid
- Swallowing saliva (unanimous)
- Tasting food without swallowing (majority — Hanafi: also permitted for the cook)
- Eye drops, nasal spray, and ear drops (majority — they do not reach the digestive tract)
- Sleeping — no effect on the fast
- Wet dreams — no effect
- Using the miswak (tooth-cleaning stick)
- Applying kohl (eye coloring)
Excused from Fasting
Sick person: permitted to break the fast if fasting causes significant harm; must make up the days later.
Traveler: permitted to break the fast on a journey meeting the travel distance requirements.
Pregnant and nursing women: permitted to break if they fear harm to themselves or the child; they make up the days, and according to some scholars also pay fidya (feeding a poor person per day) if they feared for the child alone.
The elderly who cannot fast: pay fidya (feeding a poor person per each missed day) with no qada’.
See also: Fiqh Overview, Fiqh Madhabs, Taharah, Kafara, Sadaqa Al Fitr, Siyam Nafl