V. Hilary's action was very reprehensible throughout, and we have restored Projectus.
But Hilary came upon them unawares and departed no less suddenly, accomplishing many journeys with great speed, as we have ascertained, and traversing distant provinces with such haste that he seems to have coveted a reputation for the swiftness of a courier rather than for the sobriety of a priest. For these are the words of the citizens in the letter that has been addressed to us:— “He departed before we knew he had come.” This is not to return but to flee, not to exercise a shepherd's wholesome care, but to employ the violence of a thief and a robber, as says the Lord: “he that enters not by the door into the sheep-fold, but climbs up some other way, is a thief and a robber.” Hilary, therefore, was anxious not so much to consecrate a bishop as to kill him who was sick, and to mislead the man whom he set over his head by wrongful ordination. We, however, have done what, as God is our Judge, we believe you will approve: after holding counsel with all the brethren we have decreed that the wrongfully ordained man should be deposed and the Bishop Projectus abide in his priesthood: with the further provision that when any of our brethren in whatsoever province shall decease, he who has been agreed upon to be metropolitan of that province shall claim for himself the ordination of his successor.
These two matters, as we see, have been settled, though there are many other points in them which seem to have violated the principles of the Church, and ought to be visited with just censure and judgment. But we cannot linger on them any further, for we are called off to other matters on which we must carefully confer with you, holy brethren.
Source: Letters (New Advent)