What is the ruling regarding the owners of a port whose car, which they were guarding for a fee, was stolen, and a judicial ruling is still pending against them?

You are not obligated to guarantee the stolen car unless its theft resulted from your negligence, because the hand of a hired guard is a hand of trust, and he does not guarantee except in cases of transgression or negligence. Assuming a transgression occurred that necessitates a guarantee, then paying the car's price to its owners is what is required.