Book of Purification
Introduction
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Book of Purification
It consists of removing ḥadath1 (ritual impurity) and eliminating khabath (tangible filth).

Water is divided into three categories:

First: ṭahūr (purifying) water—water that remains in the state in which it was created; it removes ritual impurity and washes away filth. It is of four kinds:

1 – Water whose use is forbidden; it removes neither ḥadath nor khabath. This is water whose use is not lawful.2

2 – Water that removes a woman’s ḥadath but not that of an adult man or an intersex person. It is the water with which a legally accountable woman has been alone while performing a complete purification from a state of impurity.

3 – Water whose use is disliked when there is no need for it: water drawn from a well in a graveyard; water that has become extremely hot or extremely cold; water heated by means of something impure or by usurped fuel; usurped water itself; water already used for a purification that was not obligatory; water employed in washing a non-Muslim; water altered by sea-salt; or water altered by a substance that does not dissolve into it, such as aloeswood incense, pieces of camphor, or oil. Water is not disliked