What is the responsibility of the original owner (Mu'ir) if the collateralized slave dies or is sold?

Primary text

If the due debt is not paid by the debtor, the slave may be sold to settle the debt, as this is the implication of the collateralization. If the slave is sold or perishes, the original owner may claim compensation for the slave's value from the debtor (Rahn), because the borrowed item is guaranteed by its value. If the slave perishes without any negligence or transgression on the part of the pledgee (Murtahin), the pledgee is not liable, as collateral is not guaranteed without fault.