[CALLISTRATUS libro secundo quaestionum. ] §22.4.5.prSi res gesta sine litterarum quoque consignatione ueritate factum suum praebeat, non ideo minus ualebit, quod instrumentum nullum de ea intercessit.
[CALLISTRATUS from the second book of Questions.] If a transaction, even without the signing of a written document, demonstrates its own occurrence by the truth of the matter, it will not be any the less valid because no written instrument was executed concerning it.