Reference for Bava Metzia 29:6
אי הכי פירות נמי כשעמד בדין על הקרן ולא עמד בדין על הפירות ומאי פסקא סתמא דמילתא כי תבע איניש קרנא תבע ברישא
when the buyer comes to demand the capital [value of the field itself] he may exact payment from encumbered property; when the robbed [neighbour] comes to demand [the value of] the fruit he may exact payment from unencumbered property [only]. [The question now arises:] Both according to Raba and according to Rabbah son of R. Huna this is [like] a debt contracted verbally,<span class="x" onmousemove="('comment',' As the claim of the robbed person is not based on any document, the payment which the robber has to make in compensation for the property he had seized is like the repayment of a loan granted without a note of indebtedness. ');"><sup>6</sup></span>