Reference for Bava Metzia 29:20
והונא חברין מוקים לה במילי אחריני בלוקח מגזלן
R. Hiyya b. Abin then said to Raba: If this is so, [would you say that] in the case of a gift, regarding which [the donor] writes no such [guarantee], [a creditor who has a previous claim to the property] may indeed not appropriate the improvement?<span class="x" onmousemove="('comment',' As there is no guarantee given by a donor as regards previous claims against the property given away, the recipient is not entitled to compensation from the donor, and if the former loses the improvements he has made in the property he has no redress. For this reason the creditor of the donor ought not to be entitled to the improvement made by the recipient, as the loss would be the latter's, not the debtor's. ');"><sup>19</sup></span>