Nicene and Post-Nicene Fathers, Ser. II, Vol. XII: The Letters and Sermons of Leo the Great.: To the Presbyters, Deacons and Clergy of the Church of Constantinople.

To the Presbyters, Deacons and Clergy of the Church of Constantinople. (Exhorting them to remain stedfast in the Faith as fixed at Chalcedon, and to have no dealings with Atticus and Andrew unless they recant.)