וְאֵ֨לֶּה שְׁמ֧וֹת בְּנֵֽי־יִשְׂרָאֵ֛ל הַבָּאִ֥ים מִצְרַ֖יְמָה יַעֲקֹ֣ב וּבָנָ֑יו בְּכֹ֥ר יַעֲקֹ֖ב רְאוּבֵֽן׃
And these are the names of the children of Israel, who came into Egypt, Jacob and his sons: Reuben, Jacob’s first-born.
Targum Jonathan on Genesis
These are the names of the sons of Israel who came into Mizraim. Jakob and his sons. The firstborn of Jakob, Reuben.