Things which make only Qaza of a fast Wajib

Mistakenly eating, drinking or having sex (i.e. those things, which invalidate the fast) and thinking that the fast in invalidated and then deliberately indulging in the same

 

If water enters the throat by chance while gargling, diving, etc.

 

Using snuff (Naas)

 

Putting medicine in the ear or eyes.

 

The medicine applied to a wound in the head or stomach reaching the brain or entering the stomach.

 

Using Hookah (Huqqa)

 

Deliberately vomiting a mouthful.

 

Mistakenly doing the Sehri after true dawn

 

Thinking that the sun has set and performing Iftaar before sunset.

 

Swallowing pebbles, paper, grass, etc.

 

Thinking that the fast has been invalidated on having a wet dream and eating ad/or drinking.

 

Somebody’s forcing someone to drink water or pouring it into the throat while sleeping.

 

Droplets of sweat or tears entering the mouth in such a quantity that their salty taste is felt in the whole mouth.

 

Inhaling the smoke of a fragrant substance like oud, etc.

 

Removing something stuck in the teeth, larger than a nut, with the tongue and swallowing it or smaller than a nut, but taking it out of the mouth and then again swallowing it.

 

Breaking any fast apart from the fast of Ramadhan, even though they may be the Qaza fasts of Ramadhan.

 

In all these cases, only Qaza (making up i.e. fasting one day in lieu of that day) of the fast is compulsory and not Kaffara (expiation/atonement).