82 Venerable brothers in the episcopacy, priest and ministers of the altar, by way of completing and leaving a remembrance of this written conversation with you, we should like to suggest this resolution to you: that on the anniversary of his ordination, or on Holy Thursday when all are united in spirit commemorating the mystery of the institution of the priesthood, each one should renew his total gift of himself to Christ our Lord; reviving in this way the awareness that He has chosen you for His divine service, and repeating at the same time, humbly and courageously, the promise of our unswerving faithfulness to His love alone in your offering of perfect chastity. (l35)
Source: Sacerdotalis Caelibatus (Vatican.va)