Catechism of the Catholic Church §999 — excerpt
How? Christ is raised with his own body: "See my hands and my feet, that it is I myself"; but he did not return to an earthly life.
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.
Also cites: Lateran Council IV (1215): DS 801