The sons of Reuben: Hanoch, Pallu, Hezron, and Carmi.

Genesis 46:8
Now these are the names of the sons of Israel (Jacob and his descendants) who went to Egypt: Reuben, Jacob's firstborn.

Genesis 46:10
The sons of Simeon: Jemuel, Jamin, Ohad, Jachin, Zohar, and Shaul the son of a Canaanite woman.

Exodus 6:14
These were the heads of their fathers' houses: The sons of Reuben, the firstborn of Israel, were Hanoch and Pallu, Hezron and Carmi. These were the clans of Reuben.

1 Chronicles 5:3
The sons of Reuben, the firstborn of Israel: Hanoch, Pallu, Hezron, and Carmi.

And the sons of Reuben; Hanoch, and Phallu, and Hezron, and Carmi.