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Islamic Contract Law – Combining Contracts (Ijtimāʿ al-ʿUqūd): Form vs Substance
1. General Principle (Form-Based Rule)
2. Basis of Prohibition
Why this is prohibited
Example
3. Exception to the Rule
Key Example: Ijārah Muntahiya bi al-Tamlīk
Why it is allowed
4. Scholarly Position
👉 This introduces:
5. Form vs Substance Debate
Form-Based View
Substance-Based View
👉 Key question:
6. Key Insight
Final Summary
One-Line Understanding
1. General Principle (Form-Based Rule)
- Classical jurists emphasise:
- Both form and substance matter
- From the form perspective:
- General rule:
- ❌ Two contracts should not be combined into one
- (ijtimaʿ al-ʿuqūd)
- General rule:
2. Basis of Prohibition
- Based on Prophetic teachings:
- Prohibition of:
- Combining sale and loan
- “Two sales in one sale” (bayʿatayn fī bayʿ)
- Prohibition of:
Why this is prohibited
- Combining contracts may lead to:
- Uncertainty (gharar)
- Hidden conditions
- Potential for:
- Ribā (interest)
Example
- “I sell you this item if you also take a loan from me”
- Contracts are:
- Interdependent
- Not independent
3. Exception to the Rule
- Despite the general prohibition:
- Some combinations are allowed
Key Example: Ijārah Muntahiya bi al-Tamlīk
- Involves:
- Lease (ijārah)
- Sale/transfer of ownership
- Two contracts
Why it is allowed
- The contracts are:
- Separated in stages
- Supported by:
- Promise (waʿd), not immediate sale
4. Scholarly Position
- Ibn al-Qayyim states:
- Combining contracts is:
- Permissible in principle
- Except where:
- Specifically prohibited
- Combining contracts is:
👉 This introduces:
- Flexibility in Islamic law
5. Form vs Substance Debate
Form-Based View
- Focus:
- Whether contracts are:
- Technically combined
- Whether contracts are:
- Concern:
- Structure and legal classification
Substance-Based View
- Focus:
- Whether combination leads to:
- Ribā
- Unfairness
- Exploitation
- Whether combination leads to:
👉 Key question:
- Is the combination:
- Just a structure?
- Or does it produce:
- Prohibited outcome?
6. Key Insight
- The prohibition is not absolute:
- It targets:
- Harmful combinations, not all combinations
- It targets:
- Therefore:
- Some combined arrangements are:
- Valid if:
- Substance is lawful
- Valid if:
- Some combined arrangements are:
Final Summary
- General rule:
- ❌ Do not combine contracts
- Exception:
- ✅ Allowed if:
- No prohibited element (ribā, gharar)
- ✅ Allowed if:
- Debate:
- Form focuses on:
- Structure
- Substance focuses on:
- Outcome and reality
- Form focuses on:
One-Line Understanding
- Islamic law does not prohibit all combined contracts, only those where:
👉 “The combination leads to a prohibited result.”
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