[If] a robber plants a vineyard and then it leaves his [control], [the owner] harvests even during the festival. How much must he give to workers? Up to a third. More than this, he harvests his usual way and continues even after the festival. From when is he called a robber? From when [the name of the original owner] sinks.

R’ Yose said: It happened once that someone planted his vineyard during sheviis. The incident came before R’ Akiva, and he said: A person cannot condemn something which is not his.