Genesis 11:12-15

When Arpachshad had lived thirty-five years, he became the father of Shelah. Arpachshad lived four hundred and three years after Shelah was born, and he had other sons and daughters. When Shelah had lived thirty years, he became the father of Eber. Shelah lived four hundred and three years after Eber was born, and he had other sons and daughters.