Canon CXXII. (Greek cxxiii.)
The sentence of the elected judges ought not to be spurned.
From the judges chosen by common consent of the parties, no appeal can be taken; and whoever shall be found to have carried such an appeal and contumaciously to be unwilling to submit to the judges, when this has been proved to the primate, let him give letters, that no one of the bishops should communicate with him until he yield.
Ancient Epitome of Canon CXXII.
A judge chosen by both parties cannot be repudiated.
This is Canon xiv. of Carthage, a.d. 418.
See Canons 76 (79) and 80 (83).