Parashas Naso
צַ֚ו אֶת־בְּנֵ֣י יִשְׂרָאֵ֔ל וִֽישַׁלְּחוּ֙ מִן־הַֽמַּחֲנֶ֔ה כׇּל־צָר֖וּעַ וְכׇל־זָ֑ב וְכֹ֖ל טָמֵ֥א לָנָֽפֶשׁ׃
Instruct the Israelites to remove from camp anyone with an eruption or a dischargeaan eruption or a discharge See Leviticus chapters 13 and 15, respectively. and anyone defiled by a corpse.
Torah Temimah points to TT (additional units) (verified).
וישלחו מן המחנה —\ldots וכן מצינו באהל מועד.
English: “And they shall send from the camp” — \ldots and so we find regarding the Tent of Meeting.
Custom
Chazal distinguish the three concentric camps and the grades of impurity excluded from each.