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Islamic Law of Transaction – Definitions of Sale According to Al-Nawawī and Ibn Qudāmah
Questions and Answers
Question 1: How did Al-Nawawī define a sale (Bayʿ)?
Al-Nawawī defined sale (Bayʿ) as:
“The exchange of an owned commodity for another with the exchange of ownership.”
This definition highlights that a valid sale must involve:
  1. An exchange of property,
  2. Lawful ownership,
  3. Transfer of ownership between parties.


Question 2: How did Ibn Qudāmah define sale?
Ibn Qudāmah defined sale similarly but added another important element:
  • The transfer of ownership, and
  • The taking possession of the sold item by the new owner.
This means that ownership alone is insufficient unless the buyer can actually receive and control the purchased item.


Question 3: What is the importance of ownership in a sale contract?
Ownership is essential because Islamic law only permits the sale of items that are lawfully owned by the seller. A person cannot sell:
  • Stolen goods,
  • Borrowed property without permission,
  • Property they do not legally possess.
This protects property rights and prevents fraud.


Question 4: Why is taking possession important according to Ibn Qudāmah?
Taking possession ensures that:
  • The buyer fully receives the purchased item,
  • The seller fulfills contractual obligations,
  • Disputes over ownership and delivery are minimized.
Possession may occur physically or constructively, depending on the nature of the item.


Practical Application Using USD Transactions
Case Scenario 1: Valid Car Sale
Omar sells his car to Bilal for USD 15,000. After Bilal pays the amount, Omar transfers the car keys, registration documents, and possession of the vehicle to Bilal.
Practical Application
This transaction fulfills:
  • Al-Nawawī’s definition because ownership is transferred,
  • Ibn Qudāmah’s definition because Bilal also takes possession of the car.
Therefore, the sale is complete and valid.


Case Scenario 2: Online Purchase with Delivery
Maryam buys a smartphone online for USD 900. After payment, the seller ships the phone to her address, and she receives it two days later.
Practical Application
The transaction becomes fully effective when:
  1. Ownership is transferred through the contract,
  2. Maryam takes possession upon delivery.
This reflects Ibn Qudāmah’s emphasis on possession.


Critical Analysis
Question: What is the difference between ownership and possession?
Ownership means having legal rights over an item, while possession means having actual control or custody of it.
For example:
  • A buyer may legally own a laptop after payment,
  • But possession occurs only when the laptop is delivered.
Islamic law emphasizes both concepts to ensure fairness and certainty in commercial dealings.


Question: Why do Islamic scholars emphasize possession in sales?
Possession is emphasized because:
  • It prevents disputes,
  • Clarifies responsibility for damage or loss,
  • Protects buyers from fraud,
  • Ensures completion of the contract.
Without possession, uncertainty (gharar) may arise, which Islamic law seeks to avoid.


Solved Case Scenario
Problem
Khalid sells a luxury watch to Faris for USD 5,000. Faris pays the amount immediately, but Khalid keeps the watch for several months and continues using it personally.
Legal and Islamic Analysis
According to Al-Nawawī:
  • Ownership may have transferred through the agreement.
According to Ibn Qudāmah:
  • The sale is incomplete in practical effect because Faris has not taken possession of the watch.
Keeping and using the watch after sale may create disputes regarding:
  • Liability,
  • Damage,
  • True completion of the contract.
Solution
Khalid must:
  1. Deliver the watch immediately,
  2. Transfer actual possession to Faris,
  3. Stop using the sold property.
Faris has the right to demand delivery or seek cancellation if the seller refuses.


Summary
Al-Nawawī defined Bayʿ as the exchange of owned property with the transfer of ownership, while Ibn Qudāmah further emphasized the necessity of possession by the buyer. Together, these definitions show that a valid Islamic sale requires lawful ownership, mutual exchange, and proper delivery of the sold item to ensure justice, certainty, and protection of rights in commercial transactions.

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