Reference for Bava Metzia 29:23
איבעית אימא בלוקח מגזלן כגון שיש לו קרקע אי נמי בשקנו מידו
R. Nahman said: The following Baraitha corroborates the view of Mar Samuel, but our colleague Huna explains it as referring to a different matter. For it was taught: If one has sold a field to a neighbour and then [the buyer] has to surrender it [to another claimant], he [the buyer] may, when seeking redress, exact repayment of the capital [value of the field itself] from encumbered property, and the [refund of the cost of the] improvement he collects from unencumbered property. But our colleague Huna explains it as referring to a different matter, [viz.], to that of one who has bought [a field] from a person who acquired it wrongfully.<span class="x" onmousemove="('comment',' According to R. Huna the rightful owner of the field has a right to claim the improvement, as the field, which was taken away from him wrongfully and sold illegally, never became the property of the buyer. But a creditor who seizes a field for a debt due to him from the seller has no right to claim the improvement made in it by the buyer, for the latter acquired the field legally, and, until the creditor seized it, it was his property. ');"><sup>22</sup></span>