On the Fasts of the Four Seasons, and that no one should take up an accusation against a doctor (teacher).
Callistus, archbishop of the Church Catholic in the city of Rome, to Benedictus, our brother and bishop, greeting in the Lord.
By the love of the brotherhood we are bound, and by our apostolic rule we are constrained, to give answer to the inquiries of the brethren, according to what the Lord has given us, and to furnish them with the authority of the seal of the apostles.