Three Pillars
Al-‘Aqidan (the two parties):
- Rahin: the pledger/debtor, who delivers the asset and retains ownership
- Murtahin: the creditor, who holds the pledge until the debt is paid
Al-Maqud Alayh (the subject matter):
- Al-Marhun (the pledged asset): must be Islamically valid, deliverable, and precisely identified
- Al-Marhun bihi (the secured debt): must be a fixed, established obligation
Al-Sigha (the form): offer and acceptance, or conduct that establishes agreement
The Non-Benefit Rule
The creditor holding the pledged asset cannot use it or extract benefit from it while the debt is outstanding. This applies even if the pledged asset is a productive one:
- House pledged as security: the creditor cannot rent it out and keep the rent
- Animal pledged: the creditor cannot use it for work
- Farmland pledged: crops belong to the rahin (pledger/owner)
The rationale: the creditor is already secured — allowing benefit on top of debt recovery would make rahn a vehicle for riba.
Exception: some Hanbali scholars permit the creditor to use an animal pledged as security if they pay for its feed — in proportion to use. The Maliki and Hanafi schools reject this.
Enforcement and Surplus
If the rahin defaults:
- The murtahin cannot unilaterally sell the asset — court authorization is required in classical fiqh
- The asset is sold at market value
- The debt amount is recovered
- Any surplus from the sale must be returned to the rahin
- If the sale proceeds are less than the debt, the rahin remains personally liable for the shortfall
Contemporary Applications
Islamic mortgages and Islamic finance use rahn principles for asset-backed finance. In a Sharia-compliant home finance arrangement:
- The property can be pledged under rahn as security for the financed amount
- This is combined with murabaha, ijarah, or musharaka structures for the finance itself
- The bank as murtahin cannot extract rental income from the property while holding rahn over it
See also: Fiqh Al Dayn, Fiqh Al Qard, Fiqh Al Kifala, Fiqh Al Musharakah, Fiqh Al Ijarah, Fiqh Al Aqd