Maliks Muwatta Book 36, Hadith Number 48B.
Section : Judgement on Slaves Using Finds.
Yahya said that he heard Malik say, “What is done in our community about a slave who finds something and uses it before the term which is set for finds has been reached, and that is a year, is that it is against his person. Either his master gives the price of what his slave has used, or he surrenders his slave to them as compensation. If he withheld it until the term was reached which is set for finds and he used it, it is a debt against him which follows him and it is not against his person and there is nothing against his master in it.”