 The Mishnah read the emphatic words of "you shall surely return them," repeating the verb "return" in the Hebrew, to teach that required a person to return a neighbor's animal again and again, even if the animal kept running away four or five times.And Rava taught that required a person to return the animal even a hundred times.If one found an identifiable item and the identity of the owner was unknown, the Mishnah taught that the finder was required to announce it.