וַיֹּ֨אמֶר יְהוָ֜ה פִּתְאֹ֗ם אֶל־מֹשֶׁ֤ה וְאֶֽל־אַהֲרֹן֙ וְאֶל־מִרְיָ֔ם צְא֥וּ שְׁלָשְׁתְּכֶ֖ם אֶל־אֹ֣הֶל מוֹעֵ֑ד וַיֵּצְא֖וּ שְׁלָשְׁתָּֽם׃
And the LORD spoke suddenly unto Moses, and unto Aaron, and unto Miriam: ‘Come out ye three unto the tent of meeting.’ And they three came out.
Read halakhic rulings (Jewish law) on Numbers 12:4: and classical halakhic sources.