Genesis 35:23-25

Young's Literal Translation

²³ And the sons of Jacob are twelve. Sons of Leah: Jacob's first-born Reuben, and Simeon, and Levi, and Judah, and Issachar, and Zebulun.

²⁴ Sons of Rachel: Joseph and Benjamin.

²⁵ And sons of Bilhah, Rachel's maid-servant: Dan and Naphtali.