Правило 19
On the anathema to those who reject church fasts without physical reasons.
If any of the ascetics, not being forced by bodily illness, begins to arrogantly violate the fasts established by tradition for everyone and observed by the Church, because the thought of perfection has become established in him, let him be anathema.
Greek original
Εἴ τις τῶν ἀσκουμένων, χωρὶς σωματικῆς ἀνάγκης, ὑπερηφανεύοιτο, καὶ τὰς παραδεδομένας νηστείας εἰς τὸ κοινόν, καὶ φυλασσομένας ὑπὸ τῆς ἐκκλησίας παραλύοι, ὑποικουροῦντος ἐν αὐτῷ τελείου λογισμοῦ, ἀνάθεμα ἔστω.
Parallel canons
Ап.69Трул.295689Лаод.49505152Дион.1Петра15Тимоф.810