[ULPIANUS libro quinto ad edictum. ] §2.4.2.prIn ius uocari non oportet neque consulem neque praefectum neque praetorem neque proconsulem neque ceteros magistratus, qui imperium habent, qui et coercere aliquem possunt et iubere in carcerem duci: nec pontificem dum sacra facit: nec eos qui propter loci religionem inde se mouere non possunt: sed nec eum qui equo publico in causa publica transuehatur.
[ULPIANUS, in the fifth book on the Edict.] It is not proper to summon to court a consul, a prefect, a praetor, a proconsul, or any other magistrates who hold imperium and who have the power both to coerce someone and to order them to be led to prison; nor a pontiff while he is performing sacred rites; nor those who, because of the sanctity of a place, cannot move themselves from there; and furthermore, nor him who is traveling on public business on a horse provided by the state.
praeterea in ius uocari non debet qui uxorem ducat aut eam quae nubat: nec iudicem dum de re cognoscat: nec eum dum quis apud praetorem causam agit: neque funus ducentem familiare iustaue mortuo facientem:
Moreover, one who is marrying a wife, or a woman who is marrying a husband, ought not to be summoned to court; nor a judge while he is investigating a case; nor a person while he is pleading his cause before the praetor; nor one who is leading a family funeral or performing funeral rites for the dead.