If performing ghusl was not possible for her, she should take to tayammum.

If performing ghusl was not possible for her, she should take to tayammum. It is preferable for the fasting person not to swallow phlegm that has reached the mouth, although it is permissible for him to swallow it. Similarly, it is permissible for him to swallow the saliva that has gathered in the mouth, even in large quantities. Discharge of semen during daytime does not invalidate the fast; and the person should perform ghusl for janabat for his salat .

So discharge of semen [during daytime] does not invalidate fasting. Washing the teeth with brush and toothpaste does not invalidate the fast as long as the person does not swallow the saliva that has mixed with the toothpaste. However, the lingering flavour or taste of the paste that mixes with the saliva does not affect the fasting.

If a Muslim lives in a city that has daylight for six months and night for six months [e.g., the northern part of Europe or Canada ], it is obligatory for him to move during the month of Ramadhan to a city with ‘normal’ day and night so that he can start fasting, if not, he should move after that month to fast as qadha (making up the missed fast).

However, if it is not possible for him to move, then he has to pay compensation (fidya) instead of fasting; that means giving 750 grams of food [rice or flour] to a poor person per day. If a Muslim lives in a city where daylight in some seasons is for 23 hours and the night is only for one hour or vice versa, it is still obligatory on him to fast, if he has the ability to do so. But if he is not able to fast, the obligation is forfieted.

If it is possible for him to do qadha later on [e.g., in other seasons or] by moving to another city, it is wajib for him to do the qadha . If he is unable even to do the qadha , it is obligatory on him to pay fidya in lieu of fasting. Questions and Answers Question: Some people come to a city with the intention of residing therein for some years for a specific purpose [e.g., education] During this time, they do not leave their own home-towns for good.

When the specific purpose is accomplished, they leave that city and go to wherever they like. How should they do their salat and how should they fast [in that city]? Answer: They shall pray fully; they can fast after having lived in that city for a month just as they do in their own home-towns.