Genesis 42:37-38

37Then Reuben spoke to his father, “You may put my two sons to death if I do not bring Benjamin back to you; put him in my care, and I will return him to you.”

38But Jacob said, “My son shall not go down [to Egypt] with you; for his brother is dead, and he alone is left [of Rachel’s children]. If any harm or accident should happen to him on the journey you are taking, then you will bring my gray hair down to Sheol (the place of the dead) in sorrow.”