مسائل المنتخبه (Articles Of Islamic Acts) - الخوئي، السيد أبوالقاسم - الصفحة ٣٤٤ - THINGS WHICH MAKE A FAST VOID

the qaza of the fasts of all those days, on which be is certain to have remained ceremonially unclean. For example, if he does not know whether he had remained ceremonially unclean for three days or four days, he should observe the qaza of the fasts of three days.
١٦٣٢. If a person, who does not have time for taking bath or performing tayammum in a night of the month of Ramazan, makes himself ceremoniously unclean, his fastis void and it is obligatory for him to observe the qaza of that fast, and also to make atonement for it.
١٦٣٣. If a person makes investigation to find out whether or not he has time at his disposal, and thinks that he has time to take bath, and makes himselfceremoniously unclean, and leafs later that the time was short and performs tayammum, his fast k in order. And if he thinks without making investigation that he has time sthis disposal and makes himself ceremoniously unclean and learns later that the time was short and observes fast with tayammum he should, on the basis of obligatoryprecaution, observe the qaza of the fast of that day.
١٦٣٤. If a person is ceremoniously unclean in the night of the month of Ramazan and knows that if he goes to sleep he will not wake up till dawn, he should not goto sleep before taking bath, and if he sleeps before taking bath and does not wake up till dawn, his fast is void. and qaza and atonement become obligatory on him.
١٦٣٥. When a ceremoniously unclean person goes to sleep in the night of the month of Ramazan and then wakes up, the recommended precaution is that if he is nothabituated to waking up, he should not go to sleep before taking bath, though it may be probable that ii he goes to sleep again, he will wake up before the Azan for dawnprayers.
١٦٣٦. If a person is ceremoniously unclean in the night of the month of Ramazan and is certain that, if he goes to sleep he will