וַיַּכּ֥וּ בָהֶ֛ם אֲבִיָּ֥ה וְעַמּ֖וֹ מַכָּ֣ה רַבָּ֑ה וַיִּפְּל֤וּ חֲלָלִים֙ מִיִּשְׂרָאֵ֔ל חֲמֵשׁ־מֵא֥וֹת אֶ֖לֶף אִ֥ישׁ בָּחֽוּר׃
And Abijah and his people slew them with a great slaughter; so there fell down slain of Israel five hundred thousand chosen men.
Read halakhic rulings (Jewish law) on II Chronicles 13:17: and classical halakhic sources.