[IDEM libro trigesimo sexto digestorum. ] §33.5.11.prSi Eros Seio legatus sit et Eroti fundus, deinde optio serui Maeuio data fuerit isque Erotem optauerit, fundus ad solum Seium pertinebit, quoniam aditae hereditatis tempore is solus erit, ad quem posset legatum pertinere.
[THE SAME, Digest, Book XXXVI] If Eros has been bequeathed to Seius, and a tract of land to Eros, and then the option of a slave has been given to Maevius and he has chosen Eros, the tract of land will belong to Seius alone, since at the time of the acceptance of the inheritance, he is the only one to whom the legacy could belong.
nam et cum seruo communi alter ex sociis legat, idcirco ad solum socium totum legatum pertinet, quoniam die legati cedente solus est, qui per eum seruum possit adquirere.
For also when one of the partners bequeathes to a common slave, for that reason the whole legacy belongs to the other partner alone, since when the right to the legacy vests, he is the only one who can acquire through that slave.