Islamic Manual

The eight kinds of fast

The eight categories of fasting in the Hanafi school, from the obligatory fasts of Ramadan down to the fasts it is disliked or forbidden to keep.

Not every fast is the same kind of fast. This document lists eight kinds, from fasts you absolutely must keep, down to fasts it's better not to keep at all.

The eight kinds of fast
Kind What it meansExample
Fard (a specific day) You must fast; it's the strongest kindThe days of Ramadan
Fard (making up a day) You must fast, a Ramadan day you oweMaking up a missed Ramadan fast
Wajib (a specific day) Almost as strong as fard; you must fastA day you promised Allah you'd fast; a day whose moon-sighting wasn't officially accepted
Wajib (not tied to one day) You must fast, but you choose which dayA penalty (kaffarah) fast; a promised fast with no set day; making up a nafl fast you broke
Sunnah The Prophet ﷺ fasted these, very good to keepAshura and the day before it; the day of Arafah; the 13th-15th of every month
Nafl Extra, voluntary, for extra rewardSix days in Shawwal; the 15th of Sha'ban; Mondays and Thursdays; fasting every other day
Makruh tanzihi Better not to, but not sinfulFasting only on Ashura by itself; fasting only on Saturday; a woman fasting nafl without her husband's permission
Makruh tahrimi Strongly disliked, close to forbiddenFasting on Eid al-Fitr; fasting on Eid al-Adha; fasting the three days after Eid al-Adha

There are eight recognized kinds of fast: fard mu'ayyan, fard ghayr mu'ayyan, wajib mu'ayyan, wajib ghayr mu'ayyan, sunnah, nafl, makruh tanzihi, and makruh tahrimi.

The eight kinds of fast
Kind LevelWhat it is
Fard mu'ayyan Fard, tied to a specific dayThe fasts of the month of Ramadan.
Fard ghayr mu'ayyan Fard, not tied to a specific dayThe missed fasts of Ramadan, made up later (qada).
Wajib mu'ayyan Wajib, tied to a specific dayA fast vowed (nazar) for a particular day; a day whose moon-sighting testimony was not accepted by the community, which the person who saw it must still fast.
Wajib ghayr mu'ayyan Wajib, not tied to a specific dayFasts of expiation (kaffarah); a vow (nazar) made without naming a specific day; a fast that must be made up after a voluntary fast was begun and then broken.
Sunnah SunnahThe fast of Ashura (10th of Muharram) together with the 9th; the fast of Arafah (9th of Dhu'l-Hijjah); the White Days: the 13th, 14th and 15th of every month.
Nafl VoluntaryThe six days of Shawwal after Eid; the 15th of Sha'ban; fasting on Mondays, Thursdays or Fridays; Dawoodi fasting (fasting on alternate days).
Makruh tanzihi Disliked, not sinfulFasting only on the day of Ashura by itself; fasting only on Saturdays; fasting continuously with no break between days (wisal); a woman fasting a voluntary fast without her husband's permission.
Makruh tahrimi Disliked, close to forbiddenFasting on the day of Eid al-Fitr; fasting on the day of Eid al-Adha; fasting on the days of Tashriq (the 11th, 12th and 13th of Dhu'l-Hijjah).

The Hanafi school recognizes eight categories of ṣawm: farḍ muʿayyan, farḍ ghayr muʿayyan, wājib muʿayyan, wājib ghayr muʿayyan, sunnah, nafl, makrūh tanzīhī and makrūh taḥrīmī.

The eight categories of fast
Category LevelInstances given in this text
Farḍ muʿayyan Farḍ, fixed to a specific dayThe fasts of Ramaḍān.
Farḍ ghayr muʿayyan Farḍ, not fixed to a specific dayThe qaḍāʾ of missed Ramaḍān fasts.
Wājib muʿayyan Wājib, fixed to a specific dayA fast vowed (naẓr) for a named day; the day of one who personally sighted the Ramaḍān or Eid moon but whose testimony was not accepted; that individual remains bound to act on their own sighting.
Wājib ghayr muʿayyan Wājib, not fixed to a specific dayKaffārah fasts; an unspecified vow (naẓr ghayr muʿayyan); the fast owed after a nafl fast was begun and then broken.
Sunnah Sunnah'Āshūrāʾ (10 Muḥarram) together with the 9th; the Day of ʿArafah (9 Dhu'l-Ḥijjah); Ayyām al-Bīḍ, the 13th–15th of every lunar month.
Nafl Voluntary, mustaḥabb in effectThe six days of Shawwāl; 15 Shaʿbān; Mondays, Thursdays and Fridays; ṣawm Dāwūd (alternating fast days).
Makrūh tanzīhī Disliked without sinSingling out ʿĀshūrāʾ alone; singling out Saturday alone; wiṣāl (fasting continuously with no break at night); a wife's nafl fast kept without her husband's permission.
Makrūh taḥrīmī Disliked, near-forbiddenFasting on the day of Eid al-Fiṭr; fasting on the day of Eid al-Aḍḥā; fasting on the Ayyām at-Tashrīq (11th–13th Dhu'l-Ḥijjah).

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