We reproduce here the whole passage dealing with the Sabbatine privilege, as it appears in the summary approved by the Congregation of Indulgences on 4 July, 1908. It is noteworthy that the Bull of John XXII, which was still mentioned in the previous summary approved on 1 December, 1866, is no longer referred to (cf. "Rescript. authent. S.C. Indulg.", Ratisbon, 1885, p. 475). Among the privileges, which are mentioned after the indulgences, the following occurs in the first place: "The privilege of Pope John XXII, commonly [vulgo] known as the Sabbatine, which was approved and confirmed by Clement VII ("Ex clementi", 12 August 1530), St. Pius V ("Superna dispositione", 18 Feb., 1566), Gregory XIII ("Ut laudes", 18 Sept., 1577), and others, and also by the Holy Roman General Inquisition under Paul V on 20 January, 1613, in a Decree to the following effect:
It is permitted to the Carmelite Fathers to preach that the Christian people may piously believe in the help which the souls of brothers and members, who have departed this life in charity, have worn in life the scapular, have ever observed chastity, have recited the Little Hours [of the Blessed Virgin], or, if they cannot read, have observed the fast days of the Church, and have abstained from flesh meat on Wednesdays and Saturdays (except when Christmas falls on such days), may derive after death — especially on Saturdays, the day consecrated by the Church to the Blessed Virgin — through the unceasing intercession of Mary, her pious petitions, her merits, and her special protection.
With this explanation and interpretation, the Sabbatine privilege no longer presents any difficulties, and Benedict XIV adds his desire that the faithful should rely on it (Opera omnia, IX, Venice, 1767, pp. 197 sqq.). Even apart from the Bull and the tradition or legend concerning the apparition and promise of the Mother of God the interpretation of the Decree cannot be contested.
The Sabbatine privilege thus consists essentially in the early liberation from purgatory, through the special intercession and petition of Mary, which she graciously exercises in favour of her devoted servants preferentially — as we may assume — on the day consecrated to her, Saturday. Furthermore, the conditions for the gaining of the privilege are of such a kind as justify a special trust in the assistance of Mary. It is especially required of all who wish to share in the privilege that they faithfully preserve their chastity, and recite devoutly each day the Little Hours of the Blessed Virgin. However, all those who are bound to read their Breviary, fulfil the obligation of reciting the Little Hours by reading their Office. Persons who cannot read must (instead of reciting the Little Hours) observe all the fasts prescribed by the Church as they are kept in their home diocese or place of residence, and must in addition abstain from flesh meat on all Wednesdays and Saturdays of the year, except when Christmas falls on one of these days. The obligation to read the Little Hours and to abstain from flesh meat on Wednesday and Saturday may on important grounds be changed for other pious works; the faculty to sanction this change was granted to all confessors by Leo XIII in the Decree of the Congregation of Indulgences of 11 (14) June, 1901.