11 Encouraged by this hope, We beseech God Himself, with the most earnest desire of Our heart, through her in whom he has placed the fulness of all good, to grant you. Venerable Brethren, every gift of heavenly blessing. As an augury and pledge of which, We lovingly impart to you, to your clergy, and to the people entrusted to your care, the Apostolic Benediction. Given in Rome, at St. Peter's, the 1st of September, 1883, in the sixth year of Our Pontificate.
Source: Supremi Apostolatus Officio (Vatican.va)