Canon 26
On the prohibition of serving as exorcists to persons not appointed by a bishop.
That those who have not been made bishops should not conjure either in churches or in houses.
Greek original
Ὅτι οὐ δεῖ ἐφορκίζειν τοὺς μὴ προαχθέντας ὑπὸ ἐπισκόπων, μήτε ἐν ταῖς ἐκκλησίαις, μήτε ἐν ταῖς οἰκίαις.
Parallel canons
IIВс.7Антиох.10