Ablution (Dry), Tayammum When Permissible

One cannot find water, or the amount one finds is insufficient for ablution

One is injured or ill

If the water is cold enough to physically harm the user

When water is nearby, but one does not want to fetch it due to fear

If one is saving his water for later use

One can get water, but fears that the prayer will be over by the time he gets it

The soil used for tayammum

How to perform tayammum

What tayammum makes permissible

What nullifies tayammum

Wiping over casts, wrappers and similar items

The Prayer of one who has no means of purifying himself