[MARCIANUS libro secundo institutionum. ] §48.10.7.prNullo modo serui cum dominis suis consistere possunt, cum ne quidem omnino iure ciuili neque iure praetorio neque extra ordinem computantur: praeterquam quod fauorabiliter diui Marcus et Commodus rescripserunt, cum seruus quereretur, quod tabulae testamenti, quibus ei data erat libertas, subprimerentur, admittendum ad suppressi testamenti accusationem.
[MARCIANUS, Institutes, Book II] In no way can slaves stand in court against their own masters, since they are not even counted at all under civil law, nor under praetorian law, nor in extraordinary proceedings: except for the fact that the deified Marcus and Commodus favorably replied by rescript that, when a slave complained that the tablets of a will, by which freedom had been given to him, were being suppressed, he should be admitted to the accusation of the suppressed will.