“Then, he shall wash with water” (Dt.23:12)—
this teaches that
a seminal emission,
[which renders a man unclean till nightfall,]
nullifies the uncleanness of a genital discharge
that appears within twenty four hours
[of the emission].2
“And at sunset he may return to the camp” (Dt.23:12)—
the setting sun delays his re-entry into the camp,
but a [single] genital discharge [following a nocturnal emission]
does not delay his re-entry into the camp.3
- =M. Zav. 2:3. The appearance of an unexplained genital discharge within 24 hours of a nocturnal emission is assumed to have been caused by the emission. Thus the genital discharge is not included among the incidents of genital discharge warranting this extreme sort of uncleanness.
- See Lv. 15:1-15 and M. Zav.1:1-2.