The exception to ordinary sale rules, why Salam exists, and the strict conditions that keep it valid Read the bilingual lesson for Advance-Purchase Sale (سَلَم): Why Future Delivery Is Allowed and test your understanding with a focused quiz.
Lesson
1. The Normal Rule — Then the Exception
In an ordinary sale, the seller should own the commodity and have physical or constructive possession before selling it. This protects the buyer from buying something uncertain or outside the seller's control.
Advance-purchase sale (سَلَم) is a special exception. Here the buyer pays the full price now, while the seller promises to deliver clearly specified goods at a future date. Because delivery is postponed, Salam is allowed only under strict conditions.
2. What Happens in Salam?
The cash moves first and the commodity comes later. The buyer pays the price in full at the time of contract, and the seller becomes obligated to deliver the agreed commodity later.
Classically, the buyer is rabb-us-salam (رب السلم), the seller muslam ilayh (المسلم إليه), the advance price ra's-ul-mal (رأس المال), and the commodity muslam fih (المسلم فيه). For understanding the structure, the simple words buyer, seller, price and commodity are enough.
3. Why Was Salam Needed?
Small farmers often need cash before harvest—for seed, cultivation and household expenses—while their crop will only become deliverable later. Traders may likewise need working cash before goods become available.
Salam gives the seller immediate liquidity without an interest-bearing loan. The buyer, in return for paying early and accepting later delivery, may obtain the commodity at a price lower than the spot price expected at delivery.
4. Condition 1: Full Price Is Paid in Advance
The buyer must pay the Salam price in full when the contract is concluded. Otherwise both sides would merely owe something to each other in the future: one side owes money and the other owes goods.
Full payment also serves the practical purpose of Salam—giving the seller immediate finance. The jurists are agreed on full advance payment, while the Maliki view mentioned allows a short two- or three-day concession provided that delay was not built into the agreement.
5. Condition 2: The Commodity Must Be Precisely Specifiable
Salam works only with goods whose quality and quantity can be described precisely enough to avoid dispute. Standardized agricultural produce or manufactured goods can often meet this test.
A unique precious stone is different: each stone may vary significantly in quality, size, colour or weight, so an exact future substitute may not be reliably describable. Salam is unsuitable where the promised goods cannot be standardized by specification.
6. Condition 3: Do Not Tie Delivery to One Specific Source
The contract should require a specified commodity, not the crop of one particular field or the fruit of one particular tree. If that single field is destroyed, delivery becomes impossible.
The seller's obligation should therefore be to deliver goods matching the agreed specifications from any lawful source available to him. This keeps delivery possible even if one particular source fails.
7. Conditions 4–6: Quality, Quantity, Date and Place
The specifications must remove practical ambiguity. Quality should be described in relevant commercial terms, quantity must be fixed by the normal unit used for that commodity, and the delivery date and place must be stated clearly.
For example, if wheat is normally sold by weight, the contract should specify the exact weight and grade. A vague promise such as “good wheat later” is not enough.
8. Condition 7: Salam Cannot Replace a Spot Exchange
Some exchanges require both counter-values to be delivered immediately. In those cases Salam cannot be used to postpone one side.
The example discussed is gold exchanged for silver, where simultaneous delivery is required. Likewise, the form of wheat-for-barley exchange discussed cannot be converted into Salam where immediate mutual delivery is legally required.
9. A Simple Salam Example
A flour mill needs 10,000 kg of a specified grade of wheat after four months. It pays a farmer the entire agreed price today. The farmer is not required to deliver wheat from one named field; he must deliver 10,000 kg matching the agreed grade, on the stated date and at the stated place.
This example shows the logic: finance is provided now, while future delivery is made sufficiently certain through detailed specifications.
Practice questions
Question 1
What makes Salam different from an ordinary spot sale?
- Price is paid now and specified goods are delivered later
- Both price and goods are delayed
- The commodity need not be specified
- The buyer pays only after delivery
Question 2
The buyer may normally leave the Salam price unpaid until delivery.
Question 3
Why can a unique precious stone be unsuitable for Salam?
- Its future substitute may not be exactly specifiable
- Precious stones have no value
- Only food can be sold by Salam
- The price must always be market price
Question 4
Why should Salam not be tied to wheat from one particular field?
- That crop may fail, making delivery uncertain
- Wheat cannot be sold by Salam
- The seller must not own land
- Only imported wheat is allowed
Question 5
Quality, quantity, delivery date and delivery place should be clearly defined in Salam.
Question 6
What is the economic benefit of Salam for the seller?
- He receives cash before delivering the goods
- He receives guaranteed interest
- He avoids all delivery responsibility
- He can leave quantity unknown
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