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As for the second situation—where the slave is still present and his return is not precluded—there are likewise three possibilities:

First: the seller sold him for immediate payment and received the price.
Second: he sold him for immediate payment but has not received the price.
Third: he sold him for a price payable at a future date.

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In the first case, where the seller sells him for immediate payment and receives the price, and the buyer subsequently discovers a defect in him, there are likewise two possibilities:

First: the seller agrees to give the buyer something in settlement on condition that he does not return the slave.
Second: the buyer agrees to give the seller something in settlement on condition that he returns the slave.

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If the buyer agrees to give the seller something extra in order to return the slave, and this additional payment consists of goods, there is no objection, whether they are delivered immediately or at a future date. If the additional payment is silver and the original sale was for gold, there is no objection to immediate payment, provided it is less than the exchange value of one dinar; deferred payment, however, is not permissible. If the additional payment is gold, it is not permissible, whether paid immediately or at a future date, because this would involve exchanging gold and goods for gold. It is therefore permissible only by way of set-off.

If, however, the seller agrees to give the buyer something extra on condition that he does not return the slave, and this additional payment consists of dinars paid immediately, with the original sale also having been for dinars, this is permissible. For the buyer has recovered that amount from the price, and the sale of the slave stands for the balance.

If the additional payment consists of dinars payable at a future date, this is not permissible, because it combines a sale with a loan. If, however,