2. Sexual intercourse - even if it occurs at night; although it's permissible during the nights when one is no longer fasting, doing so while observing I’tikāf

3. Loss of sanity 4. Making a firm intention to leave I’tikāf 5. Apostasy, as this falls contrary to worship and nullifies all deeds based on the saying of Allāh (translated meaning): ”And indeed it has been revealed to you (O Muhammad ﷺ) as it was to those (Messengers) before you: “If you join others in worship with Allāh, (then) surely (all) your deeds will be in vain, and you will certainly be among the losers.”