כִּֽי־יִהְיֶ֤ה בְךָ֙ אִ֔ישׁ אֲשֶׁ֛ר לֹא־יִהְיֶ֥ה טָה֖וֹר מִקְּרֵה־לָ֑יְלָה וְיָצָא֙ אֶל־מִח֣וּץ לַֽמַּחֲנֶ֔ה לֹ֥א יָבֹ֖א אֶל־תּ֥וֹךְ הַֽמַּחֲנֶֽה׃
If there be among you any man, that is not clean by reason of that which chanceth him by night, then shall he go abroad out of the camp, he shall not come within the camp.
Targum Jonathan on Deuteronomy
Should there be a man among you who is unclean from accidents of the night, let him go without the camp, and come not among the tents.