Seventh:

686. When the time left for Namaz is so little that if a person does Ghusl or Wudhu he would be obliged to offer the entire prayer or a part of it after the prescribed time, he should perform Tayammum.

687. If a person intentionally delays offering the prayers till no time is left for Ghusl or Wudhu, he commits a sin, but the prayers offered by him with Tayammum will be valid, although, as per recommended precaution, he should offer Qadha of the prayers.

Sixth:

685. If a person possesses such water or container which is not permitted to use, like when water or its container is usurped (Ghasbi) and there is no other water or container available, he should perform Tayammum instead of Ghusl and Wudhu.

Fifth:

684. If the body or dress of a person is najis and he possesses only as much water as is likely to be exhausted if he does Ghusl or Wudhu, and no water would be available for making his body or dress Pak, he should make is body or dress Pak and pray Namaz with Tayammum. But if he does not have anything upon which he would do Tayammum, then he should use the water for Ghusl and Wudhu, and pray with Najis body or dress.

Fourth:

Third:

677. If a person fears that if he uses water, his life will be endangered, or he will suffer from some ailment or physical defect, or the illness from which he is already suffering will be prolonged, or become acute or some complications may arise in its treatment, he should perform Tayammum. However, if he can avoid the harm by using warm water, he should prepare warm water and perform Wudhu, or Ghusl when it is necessary.

Second:

672. If a person is unable to procure water on account of old age, 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 would apply if acquiring or using water is intolerably difficult.