Rule of St Benedict Chapter 26
Of those who, without leave of the Abbot, consort with the excommunicate
Text
If any brother presume, without leave of the Abbot, join with the excommunicated brother in any way, or speak with him, or direct a command [or message] to him, he is to receive the same punishment of excommunication.
Si quis frater praesumpserit, sine iussione Abbatis, fratri excommunicato quolibet modo se iungere, aut loqui cum eo, vel mandatum ei …