Questions about the Last Things
137. Q. Did Christ remain in the tomb after his crucifixion?
A. No. He rose from the tomb on the third day after his death.
(Click through to read scriptural proofs.)
Then he opened their minds to understand the Scriptures, and said to them, “Thus it is written, that the Christ should suffer and on the third day rise from the dead, and that repentance and forgiveness of sins should be proclaimed in his name to all nations, beginning from Jerusalem.
For I delivered to you as of first importance what I also received: that Christ died for our sins in accordance with the Scriptures, that he was buried, that he was raised on the third day in accordance with the Scriptures … .
Taken from A Catechism for Girls and Boys found here.