Ritual purity in Islam

thumb|right|The word halal. It is used as a visual marker for Muslims in restaurants, shops and on products.|263x263px

Wuduʾ ( ) is the Islamic procedure for cleansing parts of the body, a type of ritual purification, or ablution. The steps of wudu are washing the hands, rinsing the mouth and nose, washing the face, then the forearms, then wiping the head, the ears, then washing or wiping the feet, while doing them in order without any big breaks between them.

heavenly beings created from light in Islamic tradition

thumb|Wudu and ghusl facilities (in background) at Jamek Mosque in [[Kuala Lumpur, Malaysia]]

In Islamic terminology, something which is makruh or makrooh (, transliterated: makrooh or makrūh) is "discouraged". This is one of the five categories (al-ahkam al-khamsa) in Islamic law – wajib/fard (obligatory), Mustahabb/mandub (recommended), mubah (neutral), makruh (disapproved), haram (forbidden).

thumb|A child performing tayammum thumb|upright|Stone of Tayammum

ʿAqīqah (), aqeeqa, or aqeeqah is the Islamic tradition of the sacrifice of an animal on the occasion of a child's birth. Aqiqah is a type of sadaqah and it is also sunnah, though not obligatory.

essential aspect of cleanliness in Islam

In Islamic law, najis () means ritually unclean. According to Islam, there are two kinds of najis: the essential najis which cannot be cleaned and the unessential najis which become najis while in contact with another najis.

Istinja is the Islamic term for the action of using water to clean oneself after urinating and/or defecating.

thumb|Khuffs Masah () refers to the act of ritually cleaning the head or feet with a small amount of water, running the wet hands over the head or feet before salat (Islamic prayer). The term shares the same root as the word Maseeh (Messiah) which is used for one who is anointed, in religious terms by God.