Tahara — Islamic Purity Law: Categories of Impurity, Wudu, Ghusl, and Tayammum

The Two Types of Impurity

Hadath (حَدَث — ritual impurity; a legal state, not physical dirtiness):

Hadath Asghar (minor ritual impurity): Requires wudu to remove. Occurs through:

1. Release of anything from the urethra or anus (urine, feces, gas)
2. Deep sleep that removes waking consciousness
3. Loss of consciousness (fainting, intoxication, madness)
4. Sexual contact (skin-to-skin contact between man and woman in the Shafi’i school)

Hadath Akbar (major ritual impurity): Requires full ghusl to remove. Occurs through:

1. Sexual intercourse (jima’) — even if no ejaculation
2. Ejaculation (with pleasure, whether in intercourse, dreams, or other situations)
3. End of menstruation (hayd)
4. End of post-partum bleeding (nifas)
5. End of irregular bleeding (istihadha is categorized differently — a state of continuous menstruation-like bleeding)

Najasa (نَجَاسَة — physical ritual impurity; an impure substance):

Najasah Mughallaza (heavy impurity — requires a specific seven-wash purification including one wash with earth/soap):

• Dog saliva and pig (the full animal including its hair, skin, etc.)
• In the Shafi’i school, these require the most stringent purification

Najasah Mutawassita (medium impurity):

• Blood (other than small amounts in some schools)
• Urine and feces (human and most animals)
• Vomit
• Pus from wounds
• Dead animals (except fish and locusts, which are permitted food)

Najasah Mukhaffafa (light impurity — can be removed by sprinkling water):

• Urine of a male infant who has not yet eaten solid food — sprinkle water suffices (Shafi’i school)

Wudu: Removing Minor Ritual Impurity

See [[wudu]] for the complete guide to performing wudu with full details. The essential summary:

Obligatory acts of wudu (6 in the Shafi’i school):

1. Intention (niyyah) — must be present at the moment of beginning
2. Washing the face (from hairline to chin, from ear to ear)
3. Washing both arms to the elbows
4. Wiping the head (minimum: any portion of the head)
5. Washing both feet to the ankles
6. Sequence in the above order (tartib)
7. Continuity (muwalat) — not allowing the body to dry between acts

Invalidators of wudu:

1. Any release from the urinary or anal openings (gas, urine, feces)
2. Deep sleep that removes consciousness
3. Loss of consciousness
4. Sexual contact (Shafi’i: skin to skin between opposite sexes)

Ghusl: Removing Major Ritual Impurity

See [[ghusl]] for the complete guide. The essential framework:

Obligatory acts of ghusl (Shafi’i school):

1. Intention (niyyah) at the beginning
2. Removing all physical impurity (najasa) from the body
3. Running water over every part of the body, including areas normally not washed — hair roots, navel, under foreskin (if present), etc.

Sunnah acts of ghusl: Reciting bismillah; washing hands first; performing wudu before the full ghusl; beginning with the right side; washing three times.

Tayammum: Ritual Purification with Earth

When water is unavailable or would cause harm to health, Allah permits purification with clean earth (tayammum):

The Quranic permission: “And if you are ill or on a journey or one of you comes from the place of relieving himself or you have contacted women and find no water, then seek clean earth and wipe over your faces and your hands with it.” (5:6)

When tayammum is valid:

• Water completely unavailable (desert, cut off from water sources)
• Water is far away (more than a mile in some scholars’ opinions)
• Water would cause harm — extreme cold without heating, skin condition that contact with water aggravates, medical advice against contact with water

How to perform tayammum:

1. Intention (niyyah)
2. Strike clean earth (or sand, stone, dust) with both palms
3. Wipe the face once
4. Strike again and wipe both hands to the wrists

Tayammum substitutes for wudu or ghusl and permits everything they permit — prayer, touching the Quran, etc. It is invalidated by the same things that invalidate wudu, plus the availability of water.

Cleaning Najasa from the Body and Clothing

For prayer: All clothing and the place of prayer must be free from najasa — physical impurity must be removed (not just hidden) before salat is valid.

The method of purification depends on the type of najasa:

• Najasah mughallaza (dog/pig): Wash seven times, one of which uses earth or soap
• Najasah mutawassita (medium): Wash until the substance’s color, smell, and taste are removed
• Najasah mukhaffafa (light — male infant urine in Shafi’i school): Sprinkling with water suffices

Blood on clothing: Must be washed before prayer. The minimum standard: no trace of color, smell, or substance remains. Modern detergents generally meet this standard.

Dry najasa: Dried blood or other dry impurity — remove the dry substance first, then wash.

Summary: Checklist Before Prayer

1. In a state of wudu (no minor ritual impurity)? → If not: perform wudu
2. No major ritual impurity requiring ghusl? → If major impurity: perform ghusl (then wudu or wudu is included)
3. Clothing free of najasa? → If not: change or wash the clothing
4. Place of prayer free of najasa? → If not: move or cover the impure spot with clean material
5. Facing the qiblah? → If uncertain: determine the direction

All five conditions must be met for salat to be valid.

See also: Wudu, Ghusl, Understanding Namaz, Qiblah, Halal And Haram, Friday Prayer