descendant of solomon

I understand that the Messiah must be a descendant of David but where does it say he must be a descendant of Solomon as well? Answer: The Scriptures teach that the Messiah will inherit his lawful and legal right to kingship through the ancestry of his biological father. Explicit in this evidence is the fact that God's promised Messiah must be a male heir of not only David: For thus says the Lord: There shall not be cut off to David a man to sit upon the throne of the house of Israel . . . . I