וַיֹּ֧אמֶר יְהוָ֛ה אֶל־מֹשֶׁ֥ה וְאֶֽל־אַהֲרֹ֖ן בְּהֹ֣ר הָהָ֑ר עַל־גְּב֥וּל אֶֽרֶץ־אֱד֖וֹם לֵאמֹֽר׃
And the LORD spoke unto Moses and Aaron in mount Hor, by the border of the land of Edom, saying:
Read halakhic rulings (Jewish law) on Numbers 20:23: and classical halakhic sources.