וַיְהִי֩ כְּכַלּ֨וֹת יְהוֹשֻׁ֜עַ וּבְנֵ֣י יִשְׂרָאֵ֗ל לְהַכּוֹתָ֛ם מַכָּ֥ה גְדוֹלָֽה־מְאֹ֖ד עַד־תֻּמָּ֑ם וְהַשְּׂרִידִים֙ שָׂרְד֣וּ מֵהֶ֔ם וַיָּבֹ֖אוּ אֶל־עָרֵ֥י הַמִּבְצָֽר׃
And it came to pass, when Joshua and the children of Israel had made an end of slaying them with a very great slaughter, till they were consumed, and the remnant which remained of them had entered into the fortified cities,
Read halakhic rulings (Jewish law) on Joshua 10:20: and classical halakhic sources.