Nicene and Post-Nicene Fathers, Ser. II, Vol. XIV:
The Canons of the Councils of Ancyra, Gangra, Neocæsarea, Antioch and Laodicea, which Canons were Accepted and Received by the Ecumenical Synods.: Canon XXIV

Canon XXIV.

No one of the priesthood, from presbyters to deacons, and so on in the ecclesiastical order to subdeacons, readers, singers, exorcists, door-keepers, or any of the class of the Ascetics, ought to enter a tavern.

Notes.

Ancient Epitome of Canon XXIV.

No clergyman should enter a tavern.

Compare this with Apostolic Canon LIV., which contains exceptions not here specified.

This canon is contained in the Corpus Juris Canonici, Gratian’s Decretum, Pars I., Dist. xliv. c. ij.