Canon 3
On the clerics who deserted their church that they shall be restored to their bishop.
In the third session the most reverend bishop, our brother, Cambra of Italica submitted a petition in the case of a certain cleric named Ispassandus who having abandoned the service in his Church to which he had been dedicated from the earliest childhood went to the Church of Cordoba. We decide that he shall be restored to his own bishop unless new facts emerge. In the secular law there is one concerning the coloni working in the farms that says that one shall stay there where he began his work. The same is decided by the canonical decree in the case of clerics who toil in the field of the Church that they shall remain where they started. Therefore it pleased us that if a cleric abandon the ministry in his own Church for the other, he should go back in where he dwelled before. If, however, someone receives him and does not send him back to his own Church without making any exceptions, he shall be deprived of communion as long a time as he did not restore the cleric. A deserting cleric shall remove the belt of the dignity of his order and spend some time closed in the monastery; only then can he be restored to the ministry of the ecclesiastical order. This is because it is impossible to restrain the licence of these wanderings without a disciplinary punishment to correct them.
(trans. M. Szada)