Reference for I Samuel 11:8

וַֽיִּפְקְדֵ֖ם בְּבָ֑זֶק וַיִּהְי֤וּ בְנֵֽי־יִשְׂרָאֵל֙ שְׁלֹ֣שׁ מֵא֣וֹת אֶ֔לֶף וְאִ֥ישׁ יְהוּדָ֖ה שְׁלֹשִׁ֥ים אָֽלֶף׃

And he numbered them in Bezek; and the children of Israel were three hundred thousand, and the men of Judah thirty thousand.