Tobit 5:16

So they were well pleased. Then said he to Tobias, Prepare thyself for the journey, and God send you a good journey. And when his son had prepared all things for the journey, his father said, Go thou with this man, and God, which dwelleth in heaven, prosper your journey, and the angel of God keep you company. So they went forth both, and the young man’s dog with them.

Background and history of Tobit, and issues with this book.