[MARCIANUS libro tertio decimo institutionum. ] §40.2.9.prIusta causa manumissionis est, si periculo uitae infamiacue dominum seruus liberauerit.
[MARCIANUS, in the thirteenth book of the Institutes.] It is a just cause for manumission if a slave has freed his master from the danger of life or of infamy.
§40.2.9.1Sciendum est, qualiscumque causa probata sit et recepta, libertatem tribuere oportere: nam diuus Pius rescripsit causas probatas reuocari non oportere, dum ne alienum seruum possit quis manumittere: nam causae probationi contradicendum, non etiam causa iam probata retractanda est.
It must be known that, whatever cause has been approved and accepted, freedom ought to be granted; for the Divine Pius wrote in a rescript that approved causes ought not to be revoked, provided that one cannot manumit another's slave; for objection should be made to the approval of a cause, but a cause already approved is not to be reconsidered.