Nicene and Post-Nicene Fathers, Ser. II, Vol. XIV: The Ca...
Let no cleric be permitted to keep a “public house.” For if it be not permitted to enter a tavern, much more is it forbidden to serve others in it and to carry on a trade which is unlawful for him. But if he shall have done any such thing, either let him desist or be deposed.
If clerics are forbidden to enter public houses, much more are they forbidden to keep them. Let them either give them up or be deposed.
Compare with this canon liv. of the Apostolic Canons; xxiv. of Laodicea; and xliij. of the Synod of Carthage. 358
It is curious that Balsamon quotes this canon at xl., i.e., the Latin numbering and not the Greek which he himself uses in his scholia.