Reference for Keritot 48:5

והא ידי מסולקת הימנה כאי אפשי דמי וקתני

An objection was raised: If a [dying] man assigned his possessions, in writing, to another, and there were among them slaves, and the other said, 'I do not want them', if the second master was a priest,<span class="x" onmousemove="('comment',' The slave of a priest may also eat of terumah (v. Glos.) . Here the slave may eat terumah, for the declaration of the beneficiary, his second master, is void.');">³</span>

Jastrow