If a person is with ablutions before the time for prayers sets in...

If a person is with ablutions before the time for prayers sets in, and knows that if he nullifies his ablutions, it will not be possible for him to procure water, the recommended precaution is that if he can preserve his ablutions, he should not nullify it. 670.

If a person has water which is sufficient only for ablutions or only for bath, and if he knows that if he throws it away he will not be able to get more water it is unlawful for him to throw that water away if the time for prayers has set in and the recommended precaution is that he should not throw it away even before the time for prayers sets in. 671.

If a person, who knows that he cannot get water nullifies his ablutions or throws away the water that he has with him after the time for prayers sets in, he commits a sin but his prayers with tayammum is in order although the recommended precaution is that he should also offer the qaza (lapsed) of that prayers. 672.

Second Condition: If a person is unable to procure water on account of old age or weakness, or fear of a thief or a beast, or because he does not possess means to draw water from a well, he should perform tayammum. The same order would apply in case the trouble to acquire water is usually considered to be unbearable. In the latter case, however, if a person does not perform tayammum and performs ablutions, his ablutions will be in order. 673.

If bucket, string and other similar things are needed for pulling water out of a well, and the person concerned is obliged to purchase or hire them, he should procure them though their price may be many times the usual rate. And the position is the same if water is sold at many times its usual price. However, if the procurement of these things entails so much expenditure that it is harmful for his condition it is not obligatory for him to procure them. 674.

If a person is obliged to take loan for procuring water he should take loan. However, if he knows or thinks that it will not be possible for him to repay the loan it is not obligatory for him to take loan. 675. If digging a well does not involve much hardship the person concerned should dig a well to procure water. 676. If a person gives water to another person without holding him under obligation the latter should accept it. 677.