Правило 4
About the anathema to those who doubt receiving communion from married elders.
If someone does not dare to receive Holy Communion from a married priest, because he supposedly should not have the liturgy, let him be anathema.
Greek original
Εἴ τις διακρίνοιτο παρὰ πρεσβυτέρου γεγαμηκότος, ὡς μὴ χρῆναι, λειτουργήσαντος αὐτοῦ, προσφορᾶς μεταλαμβάνειν, ἀνάθεμα ἔστω.
Parallel canons
Ап.5IВс.3Трул.1348Гангр.110Карф.4