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Scripture and its sciencesWorship and the pillarsLaw and courts
Overview
Ta'dil is equalising or setting straight; in law it is certifying a witness or a narrator and describing him as upright. 1
Related term
Tajrih is showing what discredits a witness. 1
Certifying witnesses
The judge must seek the probity of witnesses whose probity he does not know, according to the Shafiis, Hanbalis, Malikis, Abu Yusuf and Muhammad, and may not accept testimony without it. Abu Hanifa accepts a Muslim who appears upright and does not inquire until the opponent objects, on the hadith «Muslims are upright, each to the others, except one flogged for slander»; he requires full inquiry in penalties and retaliation, since penalties are averted by doubts. 2
Settling the postures in prayer
All agree that settling the postures, meaning stillness in bowing, prostration, sitting between the two prostrations and standing upright, is obligatory. The majority make it a pillar whose omission voids the prayer, while the Hanafis make it a duty that requires repetition without voiding the prayer, on the hadith of the one who prayed badly. 2
Division by value
Changing the value of the hunting penalty
The majority hold that the penalty for killing a like game is a choice, so one may move from the like to its value in food or fasting a day per measure, on the verse «do not kill game while you are in the state of consecration». Opinions differ on other penalties. 3
Reference
The details are under the entries on certifying (tazkiya) and the pilgrim's state (ihram). 3
People and things also explored
Command, prohibition and capacity· God's debt (dayn Allah): obligations owed to God that remain in the liability· Slaughter (dhaba'ih): the lawful killing of animals for food in fiqh· Gold (dhahab) in the rulings· Taste (dhawq) in the rulings: fasting, injury to it, and oaths· Halak (destruction of property and its legal effect)· Hay'a (the recommended forms of prayer, and the dignified offenders)· The no-harm maxim
Sources
- al-Mawsu'a al-Fiqhiyya al-Kuwaitiyya, Noor-Book copy (file named v3) , p.5404
- al-Mawsu'a al-Fiqhiyya al-Kuwaitiyya, Noor-Book copy (file named v3) , p.5405
- al-Mawsu'a al-Fiqhiyya al-Kuwaitiyya, Noor-Book copy (file named v3) , p.5406
Cite this page
islam.museum contributors. “Ta'dil (certifying a witness's probity; equalising shares; correcting postures in prayer; the value-based division)”. islam.museum, https://islam.museum/en/concept/tadil-equalising-and-certifying/. CC BY-SA 4.0. Last updated 2026-10-23.