[IDEM libro quinto regularum. ] §39.6.27.prUbi ita donatur mortis causa, ut nullo casu reuocetur, causa donandi magis est quam mortis causa donatio: et ideo perinde haberi debet atque alia quaeuis inter uiuos donatio.
[THE SAME, from the fifth book of Rules.] Where a donation mortis causa is made in such a way that it cannot be revoked under any circumstances, it is rather a reason for giving than a donation mortis causa; and therefore it ought to be treated just as any other donation inter vivos.
ideoque inter uiros et uxores non ualet et ideo nec Falcidia locum habet quasi in mortis causa donatione.
Consequently, it is not valid between husbands and wives, and therefore the Falcidian law has no application as it would in a donation mortis causa.