Original Verse:
1st Corinthians Chapter 15 Verse 5And he was seen by Cephas; then by the twelve;

Reference Verses:
Luke Chapter 24 Verse 34And they said to them, The Lord has truly come back to life again, and Simon has seen him.
Matthew Chapter 28 Verse 16-17 [16] But the eleven disciples went into Galilee, to the mountain where Jesus had given them orders to go. [17] And when they saw him they gave him worship: but some were in doubt.
Mark Chapter 16 Verse 14And later he was seen by the eleven themselves while they were taking food; and he said sharp words to them because they had no faith and their hearts were hard, and because they had no belief in those who had seen him after he had come back from the dead.
Luke Chapter 24 Verse 36And while they were saying these things, he himself was among them, and said to them, Peace be with you!
Matthew Chapter 28 Verse 16But the eleven disciples went into Galilee, to the mountain where Jesus had given them orders to go.
John Chapter 1 Verse 42And he took him to Jesus. Looking at him fixedly Jesus said, You are Simon, the son of John; your name will be Cephas (which is to say, Peter).