[ULPIANUS libro quinquagensimo tertio ad edictum. ] §50.17.165.prCum quis possit alienare, poterit et consentire alienationi.
[ULPIANUS, in the fifty-third book on the edict.] When anyone can alienate, he will also be able to consent to an alienation.
cui autem donare non conceditur, probandum erit nec, si donationis causa consenserit, ratam eius uoluntatem habendam.
But in the case of one to whom it is not permitted to make a donation, it must be held that even if he should consent for the sake of a donation, his intention is not to be considered valid.