Catechism of the Catholic Church §626 — excerpt
Since the "Author of life" who was killed is the same "living one [who has] risen", The divine person of the Son of God necessarily continued to possess his human soul and body, separated from each other by death:
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: St. John Damascene, De fide orth. 3, 27: PG 94, 1097