مسائل المنتخبه (Articles Of Islamic Acts) - الخوئي، السيد أبوالقاسم - الصفحة ٣٤١ - THINGS WHICH MAKE A FAST VOID

who has fabricated that falsehood, there is no harm in it.
١٦١٠. If a person, who is observing fast, is asked whether the Holy Prophet said such and such thing and he intentionally says No when he should say Yes orintentionally says Yes when he should say No, his fast becomes void.
١٦١١. it. a person, quotes_ the word of Allah or of the Holy Prophet correctly, and says later that he has told a lie, or if he ascribed something false to them atnight, and says on the following day. when he is observing fast, that what he said on the previous night was correct, his fast becomes void.

V. LETTING DUST REACH ONES THROAT
١٦١٢. On the basis of obligatory precaution making thick or thin dust reach ones throat makes ones fast void, whether the dust is of something which is lawful toeat (for example nour) or of something whose eating is prohibited (for example earth).
١٦١٣. If dust is created by wind and a person does not take care in spite of taking notice of it, and the dust reaches his throat, his fast becomes void on thebasis of obligatory precaution.
١٦١٤. The obligatory precaution is that the person, who is observing fast, should not make thick steam and the smoke of cigarettes. tobacco. and other similarthings reach his throat.
١٦١٥. If a person does not take care, and dust, steam, smoke. ,,y other similar thing enters his throat, and ii he was quiet satisfied or sure that these thingswould not reach his throat, his fast is in order, but if he only thought that they ,ul not reach his throat it is better that he should observe that fast again as qaza.
١٦١٦. If a person forgets that he is observing fast and does not exercise care, and dust or any other similar thing enters his throat involuntarily, his fast doesnot become void.