Правило 23
About the ban on wearing an orarion for readers and singers.
About the fact that readers or singers should not wear an orarion and read or sing like that.
Greek original
Ὅτι οὐ δεῖ ἀναγνώστας, ἢ ψάλτας ὡράριον φορεῖν, καὶ οὕτως ἀναγινώσκειν, ἢ ψάλλειν.
Parallel canons
Ап.2659IВс.16IVВс.4Трул.43375VIIВс.14Лаод.2259Карф.103