If the buyer pays the entire price immediately, the seller’s claim has already been satisfied. The seller cannot insist on rescission merely because the collateral promised to secure an unpaid price was not delivered.
For example, an item is sold for 200,000 with a named pledged ornament. The buyer declines to pledge the ornament but pays the entire 200,000 at once. The secured obligation has already been discharged.
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Immediate payment removes the need for security
Kitab al-Rahn: Two Pledgees, Conditional Security and Custody
If the buyer pays the entire price immediately, the seller’s claim has already been satisfied. The seller cannot insist on rescission merely because the collateral promised to secure an unpaid price was not delivered.
For example, an item is sold for 200,000 with a named pledged ornament. The buyer declines to pledge the ornament but pays the entire 200,000 at once. The secured obligation has already been discharged.