Canon LXIV.
Canons of Local Councils Received in Trullo (Sardica, Carthage) · The Seven Holy Ecumenical Councils
Concerning the publishing of manumissions in church, if our fellow bishops throughout Italy shall be found to do this, it will be a mark of our confidence to follow their order [of proceedings], full power being given to the legate we send, that whatever he can accomplish worthy of the faith, for the state of the Church and the salvation of souls, we shall laudably accept in the sight of the Lord. All which things, if they please your sanctity, pray set forth, that I may be assured that my suggestion has been ratified by you and that their sincerity may freely accept our unanimous action. And all the bishops said: The things which have been enjoined to be done and have been wisely set forth by your holiness are pleasing to all.
LocalT 2.68.3
The Emperor’s permission should be sought to allow the public manumission of slaves in church.
LocalT 2.68.6