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Halal crypto glossary

Urbunعربون

A deposit contract that grants a buyer an option to complete a purchase, with the deposit forfeited if they decline. Recognised by AAOIFI under strict conditions and the closest classical analogue to a call option — though most modern crypto options do not satisfy its conditions.

Definition

Urbun (عربون) is a classical Islamic contract structure in which a buyer pays a non-refundable deposit upfront, securing the option to complete a purchase at a later defined price. If the buyer proceeds, the urbun counts toward the purchase price; if they decline, the deposit is forfeited to the seller.

Urbun is one of the most-debated classical structures. The Hanbali school accepts it as a valid contract; the Hanafi, Maliki, and Shafi'i schools have historically been more cautious. AAOIFI Shariah Standard No. 53 endorses urbun under specific conditions, making it the closest classical analogue to a call option in modern finance.

The Shariah conditions

For an urbun structure to remain valid under AAOIFI Standard 53:

  1. The underlying must be a permissible asset — Shariah screening applies to the same standards as any sale.
  2. Specifications must be defined — price, quantity, quality, and timeline.
  3. The deposit (urbun) is forfeited only if the buyer cancels — it is not a "cooling off" fee or interest payment.
  4. The total transaction must be a real sale, not a synthetic price bet — meaning if the buyer exercises, possession (qabd) actually transfers.

Why most modern crypto options do not qualify

A common attempt to defend listed crypto options is to call them "urbun-equivalent." This usually fails on multiple grounds:

  1. Most modern options are cash-settled. The buyer who exercises receives a cash payment based on price difference, not the underlying asset. There is no real qabd.
  2. The premium is structured as a separate financial instrument — typically priced via Black-Scholes models that incorporate volatility-as-time-value. This is a riba-adjacent pricing mechanism rather than a simple non-refundable deposit.
  3. Speculation rather than acquisition intent. AAOIFI Standard 53 implicitly assumes the urbun is paid because the buyer actually wants the asset. Most option buyers have no acquisition intent — they are taking a directional speculative bet.

Where urbun-style instruments may legitimately exist

A genuine on-chain urbun could exist: a customer pays a defined non-refundable deposit for the right to acquire a specific NFT, real-estate token, or commodity-token at a future strike, with full physical delivery on exercise. This would be Shariah-compliant under AAOIFI Standard 53.

Listed crypto options on conventional exchanges (Deribit, Binance Options, etc.) typically do not satisfy these conditions and are excluded from any tier's universe by HalalCrypto's structural prohibition on derivatives. See why we don't trade derivatives, futures, or margin.

Sources cited

  • AAOIFI Shariah Standard No. 53 (Urbun)
  • Ibn Qudamah, Al-Mughni 4:230

Related terms

Where this term is applied

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