וּבְנֵ֥י יוֹסֵ֛ף אֲשֶׁר־יֻלַּד־ל֥וֹ בְמִצְרַ֖יִם נֶ֣פֶשׁ שְׁנָ֑יִם כָּל־הַנֶּ֧פֶשׁ לְבֵֽית־יַעֲקֹ֛ב הַבָּ֥אָה מִצְרַ֖יְמָה שִׁבְעִֽים׃ (פ)
And the sons of Joseph, who were born to him in Egypt, were two souls; all the souls of the house of Jacob, that came into Egypt, were threescore and ten.
Read halakhic rulings (Jewish law) on Genesis 46:27: and classical halakhic sources.