IV. The Metropolitans must not ordain hastily nor without consulting their Primate.
Let one be ordained a priest throughout these churches inconsiderately; for by this means ripe judgments will be formed about those to be elected, if your scrutiny, brother, is dreaded. But let any bishop who, contrary to our command, is ordained by his metropolitan without your knowledge, know that he has no assured position with us, and that those who have taken on themselves so to do must render an account of their presumption. But as to each metropolitan is committed such power that he has the right of ordaining in his province, so we wish those metropolitans to be ordained, but not without ripe and well-considered judgment. For although it is seemly that all who are consecrated priests should be approved and well-pleasing to God, yet we wish those to have peculiar excellence whom we know are going to preside over the fellow priests who are assigned to them. And we admonish you, beloved, to see to this the more diligently and carefully, that you may be proved to keep that precept of the Apostles which runs, “lay hands suddenly on no man.”
Source: Letters (New Advent)