Related for Kiddushin 46:1
לר' שמעון בן אלעזר עבד כנעני מהו שיעשה שליח לקבל גיטו מיד רבו כיון דגמר לה לה מאשה כאשה
According to R'Simeon B'Eleazar,<span class="x" onmousemove="('comment',' Who maintains that a slave cannot receive his own deed.');"><sup>1</sup></span> can a heathen slave appoint an agent to receive his deed of emancipation from his master:<span class="x" onmousemove="('comment',' Tosaf. gives two interpretations: (i) Obviously, as stated above, another person must accept it on his behalf. This, however, may be only if the slave does not explicitly appoint him his agent, but if he does, he becomes legally as himself, and just as he himself cannot accept the deed, his agent cannot either. (ii) When another person accepts it on his behalf, must he be his agent, just as the person who accepts a woman's divorce on her behalf must be distinctly appointed by her for that purpose? If so, on the view that it is to the slave's advantage to be freed, the agency is tacitly assumed: while if we hold that it is to his disadvantage, he must be expressly appointed. Or possibly, he does not act in the character of an agent at all, since the slave himself could not have accepted it. In that case, not only is an express appointment unnecessary, but even if the slave actually protests against it, his protest is unavailing.');"><sup>2</sup></span>