1 Chronicles 5:3

the sons of Reuben the first-born of Israel: Hanoch, and Pallu, Hezron, and Carmi.

Genesis 46:9

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

Exodus 6:14

These were the heads of their fathers' houses: The sons of Reuben the first-born of Israel: Hanoch and Pallu, Hezron and Carmi. These were the families of Reuben.

Numbers 26:5-9

Reuben, the first-born of Israel, the sons of Reuben, of Hanoch who came of the family of the Hanochites; of Pallu the family of the Palluites;

Treasury of Scripture Knowledge

Summary

The sons, I say, of Reuben the firstborn of Israel were, Hanoch, and Pallu, Hezron, and Carmi.

Bible References

Sons

Genesis 46:9
And the sons of Reuben: Hanoch, and Phallu, and Hezron, and Carmi.
Exodus 6:14
These were the heads of their fathers' houses: The sons of Reuben the first-born of Israel: Hanoch and Pallu, Hezron and Carmi. These were the families of Reuben.
Numbers 26:5
Reuben, the first-born of Israel, the sons of Reuben, of Hanoch who came of the family of the Hanochites; of Pallu the family of the Palluites;