Madhhab

A school of jurisprudence following the methodology of a founding scholar. The four surviving Sunni schools are the Hanafi, Maliki, Shafi'i, and Hanbali; the Ja'fari school is followed by most Shia Muslims.

The schools share the sources but differ in method, which produces different rulings on finance: the Hanafi school counts jewelry as zakatable and historically tolerated some legal stratagems, the Hanbali school is most permissive on contractual conditions and options, and the Maliki school emphasizes blocking means to prohibited ends. Modern Islamic finance standards often adopt the strongest or most practical view across schools rather than following one.

Many apparent contradictions in halal finance advice dissolve once you know which school a scholar is applying. Zakat on jewelry: a Hanafi scholar will tell you to pay on the gold you wear; a Shafi'i scholar will tell you it is exempt if for personal use. Options and conditions in contracts: Hanbali jurisprudence allows almost any condition the parties agree to unless it contradicts the contract's purpose, which is why modern financing documents with their many undertakings lean on Hanbali reasoning, while Hanafi rules are stricter about conditions that benefit one party.

Legal stratagems: the classical Hanafi tolerance of some hiyal is why Bai' al-Inah found early acceptance in parts of the Muslim world, and the Maliki doctrine of blocking means (sadd al-dhara'i) is why it was rejected elsewhere. Eating in uncertainty: the schools also differ on how much ambiguity in a contract rises to prohibited gharar. Contemporary standard-setters like AAOIFI do not follow one school; they select positions across schools on the strength of evidence and practicality, which is called talfiq when done case by case and is accepted for institutional rulemaking.

For an individual, the traditional advice is to follow one school or one qualified scholar consistently rather than assembling the most lenient answer to each question. Where you follow a position that differs from your provider's board, as with zakat on jewelry or retirement accounts, the tools on this site let you choose the position and show the source.