Esther 2:19 Halakhah

וּבְהִקָּבֵ֥ץ בְּתוּל֖וֹת שֵׁנִ֑ית וּמָרְדֳּכַ֖י יֹשֵׁ֥ב בְּשַֽׁעַר־הַמֶּֽלֶךְ׃

And when the virgins were gathered together the second time, and Mordecai sat in the king’s gate—

Read halakhic rulings (Jewish law) on Esther 2:19: and classical halakhic sources.