LXXXIV. On the excommunicated.
It is not allowed to communicate with the excommunicated nor to enter their houses to pray with them. And it is not allowed to receive in a church one who has been expelled from another. If, however, a bishop, presbyter, or deacon or any other ecclesiastic communicates with an excommunicated, he shall be excommunicated too as a person disturbing all the ecclesiastical discipline.
(trans. M. Szada)