مسائل المنتخبه (Articles Of Islamic Acts) - الخوئي، السيد أبوالقاسم - الصفحة ٥٦ - ABLUTIONS

ablutions elsewhere hisobligation is to perform Tayammum. And if he can perform elsewhere it is necessary that he should do so. However, if commission of sin is involved in either case,and heperforms ablutions at the first place his ablutions will be in order.
٢٧٤. If a person does not know whether the pool or tank of water of a school has been dedicated to the general public or to the students of that school only and ifpeople usually perform ablutions with the water of that pool there is no harm in his performing ablutions with its water.
٢٧٥. If a person who does not wish to offer prayers in a particular mosque is not aware whether its pool has been dedicated to the general public or to thosepersons who offer prayers in that mosque he cannot perform ablutions with the water of the pool of that mosque. However, if usually those persons also perform ablutions withthe water of that pool who do not wish to offer prayers in that mosque that person can also perform ablutions with the water of that pool.
٢٧٦. Performing ablutions with the water of the pools of the inns and hotels etc. by persons who are not staying there is valid in case other persons who are notstaying there also usually perform ablutions with that water.
٢٧٧. There is no harm if a person performs ablutions with the water of big canals although he may not be knowing whether the owner of those canals is agreeable toit. However, if the owner of the those canals prohibits performing ablutions with their water or if it is known that he is not agreeable to ablutions being performed withtheir water or if he is a minor or an insane person or the canals are in the control of a usurper it is not permissible in all such cases to perform ablutions with the waterof those canals. However, there is no harm in performing ablutions with the water of the canals which are situated in villages and places like villages and to utilize them if the people