Ad legem Iuliam et Papiam libri
Ex libro XV
Ulpianus, On the Lex Julia et Papia, Book XV. “I desire the income of my estate to be paid every year to my wife.” Aristo gives as his opinion that this legacy will not pass to the heir of the wife, because it resembles either an usufruct, or a legacy to be paid annually.
The Same, On the Lex Julia et Papia, Book XV. Generally speaking, it must be remembered that donations mortis causa are comparable to legacies. Therefore, any rule of law which applies to legacies must be understood also to apply to donations mortis causa. 1Julianus says that if anyone should during the lifetime of the donor sell a slave given to him as a donation mortis causa, the latter will be entitled to a personal action to recover the price, if he should regain his health, and choose to do so; otherwise, the donee will be compelled to return the slave himself.