Commentary for Kiddushin 45:11
וחכמים אומרים בכסף ע"י עצמו: בכסף ע"י עצמו אין ע"י אחרים לא אמאי נהי נמי דשלא מדעתו מכדי שמענא להו לרבנן דאמרי זכות הוא שיצא מתחת יד רבו לחירות ותנינא זכין לאדם שלא בפניו ואין חבין לו אלא בפניו
- The impress is nevertheless the same.<span class="x" onmousemove="('comment',' There is nothing in the coins themselves to shew their different purposes.');"><sup>11</sup></span> Raba said: In the case of money, its receipt by the master effects it [his liberation]: but as for deed, its receipt by others effects it.<span class="x" onmousemove="('comment',' In the case of money the master accepts it on his own behalf, not on that of the slave's; therefore the latter's consent is unnecessary. But deed is accepted by others on the slave's behalf; therefore his consent is required.');"><sup>12</sup></span>