Canon 7
On usurping power in the diocese of someone else
If a bishop or those who are with him go from one province to another without having been summoned by a letter of the metropolitan bishop, but audaciously invading it in order to improperly ordain and install clerics who do not belong to him, these ordinations are invalid and the decisions are void. The bishop shall be excommunicated with a proper chiding and accursed by the holy council.
(trans. M. Szada)