The Canons of the Councils of Ancyra, Gangra, Neocæsarea, Antioch and Laodicea, which Canons were Accepted and Received by the Ecumenical Synods 85Canon XXII.

Let not a bishop go to a strange city, which is not subject to himself, nor into a district which does not belong to him, either to ordain any one, or to appoint presbyters or deacons to places within the jurisdiction of another bishop, unless with the consent of the proper bishop of the place. And if any one shall presume to do any such thing, the ordination shall be void, and he himself shall be punished by the synod.