Canon 23
On leniency in penance for an involuntary murderer from 7 to 5 years.
Regarding unintentional murderers, the first definition commands that they participate in perfect communion after 7 years, having passed the established degrees of repentance, and the second - that they fulfill a 5-year period of repentance.
Greek original
Ἐπὶ ἀκουσίων φόνων, ὁ μὲν πρότερος ὅρος ἐν ἑπταετίᾳ κελεύει τοῦ τελείου μετασχεῖν κατὰ τοὺς ὡρισμένους βαθμούς· ὁ δὲ δεύτερος, τὸν πενταετῆ χρόνον πληρῶσαι.
Parallel canons
Вас.81157Григ.Нисск.5