1 Corinthians 15:3-7

I passed on to you what I received, of which this was most important: that Christ died for our sins, as the Scriptures say; that he was buried and was raised to life on the third day as the Scriptures say; and that he was seen by Peter and then by the twelve apostles. After that, Jesus was seen by more than five hundred of the believers at the same time. Most of them are still living today, but some have died. Then he was seen by James and later by all the apostles.