Numbers 26:5
Reuben was the firstborn of Israel. The Reubenites: from Hanoch, the family of the Hanochites; from Pallu, the family of the Palluites;
1 Chronicles 5:3
The sons of Reuben, Israel's firstborn: Hanoch, Pallu, Hezron, and Carmi.
Genesis 46:8-9
These are the names of the sons of Israel who went to Egypt -- Jacob and his sons: Reuben, the firstborn of Jacob.
Exodus 6:14
These are the heads of their fathers' households: The sons of Reuben, the firstborn son of Israel, were Hanoch and Pallu, Hezron and Carmi. These were the clans of Reuben.
1 Chronicles 5:1
The sons of Reuben, Israel's firstborn -- (Now he was the firstborn, but when he defiled his father's bed, his rights as firstborn were given to the sons of Joseph, Israel's son. So Reuben is not listed as firstborn in the genealogical records.
Genesis 29:32
So Leah became pregnant and gave birth to a son. She named him Reuben, for she said, "The Lord has looked with pity on my oppressed condition. Surely my husband will love me now."
Genesis 49:2-3
"Assemble and listen, you sons of Jacob; listen to Israel, your father.