Disappearance of a Muslim

227. When body or dress or anything else such as household utensil or carpet which has been in the possession of a Muslim becomes Najis, and thereafter that Muslim disappears, the things in question can be treated as Pak, with the following six conditions:

Istibra of an animal which eats Najasat

226. The dung and urine of an animal which is habituated to eating human excrement, is Najis, and it could be made Pak by subjecting it to "Istibra", that is, it should be prevented from eating Najasat, and Pak food should be given to it, till such time that it may no more be considered an animal which eats Najasat.

As a recommended precaution, the following animals should be prevented from eating Najasat and Pak food should be given to it for the period specified:

Removal of Essential Najasat

Subjection (Taba'iyat)

215. Taba'iyat means that a Najis thing becomes Pak, in subjection of another thing becoming Pak.

Islam

Transfer (Intiqal)

210. If the blood of a human being, or of an animal whose blood gushes forth when its large vein is cut, transfers to the animal whose blood does not gushes forth, in a way that it becomes the part of its body, the blood becomes Pak. This process is called Intiqal. So, blood of a human being sucked by a leech will be Najis, because it is not considered as part of its body – it is considered as human blood.

Transformation (Istihala)

196. If a Najis thing undergoes such a change, that it assumes the category of a Pak thing it becomes Pak, this process is called Istihala; for example, if a Najis wood burns and is reduced to ashes, or a dog falls in a salt-marsh and transforms into salt, it becomes Pak. But a thing does not become Pak if its essence or category does not change; like, if wheat is ground into flour, or is used for baking bread, it does not become Pak.

The sun

192. The sun makes the earth, building, and other things such as doors and windows which are installed in the buildings and also the nails which are beaten up in the wall, Pak, provided the following five conditions are fulfilled:

Earth

184. The earth, with three conditions, makes the sole of one's feet and shoes Pak which has become Najis because of walking on Najis floor, and as per obligatory precaution, with regards to the Najasat which has reached the sole or shoes from outside, one should not only walk on the earth to make his sole of feet or shoes Pak but should also clean it up.

The earth makes the sole of one’s feet and shoes Pak with the following three conditions:

Water

150. Water, with four conditions, makes Najis thing Pak: