28 All presbyters, both diocesan and religious, participate in and exercise with the bishop the one priesthood of Christ and are thereby constituted prudent cooperators of the episcopal order. In the care of souls, however, the first place is held by diocesan priests who are incardinated or attached to a particular church, for they have fully dedicated themselves in the service of caring for a single portion of the Lord's flock. In consequence, they form one presbytery and one family whose father is the bishop. In order to distribute more equitably and properly the sacred ministries among his priests, the bishop should possess a necessary freedom in bestowing offices and benefices. Therefore, rights or privileges which in any way limit this freedom are to be suppressed. The relationships between the bishop and the diocesan priests should rest most especially upon the bonds of supernatural charity so that the harmony of the will of the priests with that of their bishop will render their pastoral activity more fruitful. Wherefore, for the sake of greater service to souls, let the bishop call the priests into dialogue, especially about pastoral matters. This he should do not only on a given occasion but at regularly fixed intervals insofar as this is possible. Furthermore all diocesan priests should be united among themselves and so should share a genuine concern for the spiritual welfare of the whole diocese. They should also be mindful that the benefits they receive by reason of their ecclesiastical office are closely bound up with their sacred work. Therefore they should contribute generously, as the bishop may direct and as their means permit, to the material needs of the diocese.
Source: Christus Dominus (Vatican.va)