[IAUOLENUS libro primo ex posterioribus Labeonis. ] §29.2.62.prAntistius Labeo ait, si ita institutus sit 'si iurauerit, heres esto', quamuis iurauerit, non tamen eum statim heredem futurum, antequam pro herede aliquid gesserit, quia iurando uoluntatem magis suam declarasse uideatur.
[IAUOLENUS, in the first book from the posthumous works of Labeo.] Antistius Labeo says that if someone has been appointed in this way, "If he swears, let him be heir," even though he has sworn, he will not, however, immediately become heir before he has done something as heir, because by swearing he seems rather to have declared his intention.
ego puto satis eum pro herede gessisse, si ut heres iuranerit: Proculus idem, eoque iure utimur.
I think that he has sufficiently acted as heir if he has sworn as heir; Proculus is of the same opinion, and we follow this rule.
§29.2.62.1Si seruus heres institutus post iussum domini, antequam adiret, alienatus esset, nouum iussum posterioris domini, non iussum prioris exigitur.
If a slave appointed as heir, after the command of his master but before he accepted the inheritance, has been alienated, a new command of the subsequent master, and not the command of the former one, is required.