Sunan an-Nasa'i 3935

ʿAmr ibn Zurarah reported to us: Ismaʿil narrated to us, from Ayyub, from Muhammad, who said: “I know of only two rulings that Shurayh gave concerning a mudarib. Sometimes he would say to the mudarib: ‘Bring your evidence for a loss that would excuse you.’ At other times he would say to the owner of the capital: ‘Bring your evidence that your trustee has acted dishonestly; otherwise, the trustee must swear by Allah that he did not betray you.’”