Can. 665

§1. Observing common life, religious are to live in their own religious house and are not to be absent from it except with the permission of their superior. If it concerns a lengthy absence from the house, however, the major superior, with the consent of the council and for a just cause, can permit a member to live outside a house of the institute, but not for more than a year, except for the purpose of caring for ill health, of studies, or of exercising an apostolate in the name of the institute.

§2. A member who is absent from a religious house illegitimately with the intention of withdrawing from the power of the superiors is to be sought out solicitously by them and is to be helped to return to and persevere in his or her vocation.