Genesis 11:10

And these [are] the generations of Sem: and Sem was one hundred years old when he begot Arphaxad, the second year after the flood.

These are the generations of Shem: Shem was an hundred years old, and begat Arphaxad two years after the flood:

This is the history of the generations of Shem: Shem was one hundred years old when he became the father of Arpachshad two years after the flood.