Roman Catechism 6.12

Chapter 6 — Part I: The Creed — Article IV: Suffered Under Pontius Pilate, Was Crucified, Dead, and Buried

Section 12. Christ Really Died — The pastor should explain that these words present for our belief that Jesus Christ, after He was crucified, really died and was buried. It is not without just reason that this is proposed to the faithful as a separate object of belief, since there were some who denied His death upon the cross. The Apostles, therefore, were justly of opinion that to such an error should be opposed the doctrine of faith contained in this Article, the truth of which is placed beyond the possibility of doubt by the united testimony of all the Evangelists, who record that Jesus yielded up the ghost.