a valley through which water flowed. He took the risk and crossed the valley with the livestock, and they perished; he is therefore liable, because he has transgressed and is prohibited from doing anything that harms the livestock.
Another example is when hail falls from the clouds and he does not bring the livestock under shelter until they die. He is liable, because he was negligent; his duty was to bring them into a place where they would be safe.
“A joint employee is liable for whatever is damaged by his act, but he is not liable for what is damaged while in his custody, or without his act; nor is he entitled to any wage.”
His statement, “A joint employee is liable,” means the joint employee whose benefit is defined by the work itself and who accepts work from anyone, such as a washer, tailor, and the like.
His statement, “for whatever is damaged by his act,” applies even if it was accidental, because it is reported from some of the Companions, may Allah be pleased with them, that they held him liable without qualification (1). Secondly, because the work is guaranteed by him: his benefit is defined by the work, so if he makes a mistake and does not perform the work for which he is responsible, he must compensate for it.
Some scholars said that he is not liable for what is damaged through his accidental act, because he is a trusted custodian. Thus, there is no difference between him and a private employee: just as a private employee is not liable for what is damaged through his accidental act, neither is this worker, since both are trusted custodians.
It was also said that he is liable for what is damaged by an act that he himself deliberately performs,