1 Chronicles 5:3
The descendants of Reuben, Israel's firstborn, included Hanoch, Pallu, Hezron, and Carmi.
Genesis 46:9
Reuben's sons Hanoch, Pallu, Hezron, and Carmi;
Exodus 6:14
These are the heads of their ancestors' households: the sons of Reuben, the firstborn of Israel: Hanoch and Pallu; Hezron and Carmi.
Numbers 26:5-9
From Reuben, Israel's firstborn, the descendants of Reuben included from Hanoch, the family of the descendants of Hanoch; from Pallu, the family of the descendants of Pallu;
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                                        
                                                                                                                                Reuben's sons Hanoch, Pallu, Hezron, and Carmi; 
                                    
                                        Exodus 6:14                                        
                                                                                                                                These are the heads of their ancestors' households: the sons of Reuben, the firstborn of Israel: Hanoch and Pallu; Hezron and Carmi.
                                    
                                        Numbers 26:5                                        
                                                            
                        From Reuben, Israel's firstborn, the descendants of Reuben included from Hanoch, the family of the descendants of Hanoch; from Pallu, the family of the descendants of Pallu;