Canon 24
About the fact that a layman who castrates himself is excommunicated from the Holy Mysteries for three years.
A layman who has castrated himself will be excommunicated for 3 years, for he has encroached on his own life.
Greek original
Λαϊκὸς ἑαυτὸν ἀκρωτηριάσας, ἀφοριζέσθω ἔτη τρία· ἐπίβουλος γάρ ἐστι τῆς ἑαυτοῦ ζωῆς.
Parallel canons
Ап.212223IВс.1Двукр.8