Reference for Bava Kamma 224:13
וכי כתבינן אמקרקעי אבל אמטלטלי לא דלמא שמיט ואכיל להו מלוה למטלטלי וכי אתי לוה ומייתי סהדי ומרע ליה לשטרא לא משכח מידי למיגבה
This, however, is not correct; we do not write an <i>adrakta</i> upon movables even though the creditor possesses immovables, since there is a possibility that his property may meanwhile become depreciated in value.<span class="x" onmousemove="('comment',' And would not suffice to meet the repayment. ');"><sup>22</sup></span> Whenever we write an <i>adrakta</i> we notify this to the debtor, provided he resides nearby,<span class="x" onmousemove="('comment',' Within ten parasangs i.e. forty mil, the walking distance of one day, as in M.K. 21b; see Tur, H.M. 98, 9; cf. however Maim. Yad, Malweh we-Loweh, XXII, 4. ');"><sup>23</sup></span>