Reference for Bava Kamma 41:3
א"ל רבה בר רב הונא הכי אמר אבא מרי משמיה דרב אינו צריך להעלות לו שכר והשוכר בית מראובן מעלה שכר לשמעון שמעון מאי עבידתיה הכי קאמר נמצא הבית של שמעון מעלה לו שכר
'Ask R. Huna as to his opinion regarding the case of one who occupies his neighbour's premises without any agreement with him, must he pay him rent or not?' But in the meanwhile R. Huna's soul went to rest. Rabbah b. R. Huna thereupon replied as follows: 'Thus said my father, my Master, in the name of Rab: He is not legally bound to pay him rent; but he who hires premises from Reuben may have to pay rent to Simeon.' But what connection has Simeon with premises [hired from Reuben, that the rent should be paid to him]? — Read therefore thus: '… [Reuben] and the premises were discovered to be the property of Simeon, the rent must be paid to him.' But [if so], do not the two statements [made above in the name of Rab] contradict each other? — The latter statement [ordering payment to Simeon] deals with premises which were for hire,<span class="x" onmousemove="('comment',' In which case the owner sustains a loss and rent must be paid. ');"><sup>2</sup></span>