Catechism of the Catholic Church §655 — excerpt
Finally, Christ's Resurrection - and the risen Christ himself is the principle and source of our future resurrection: "Christ has been raised from the dead, the first fruits of those who have fallen asleep.
This translation is under copyright, so only the cited words are quoted here. Follow the link for the full text. Translation: English translation of the Catechism of the Catholic Church, 2nd ed. (Libreria Editrice Vaticana), as posted at vatican.va.