Parashas Metzora · Passuk 15:33
Chabad.org — English translation + Rashi
Torah Temima points to Toras Kohanim.
English: “With an impure woman” — to include one who is intimate with a shomeres yom keneged yom.
Inclusion of shomeres yom
Chazal include intimacy with a woman observing a clean day corresponding to a prior zivah sighting under the same separation framework as intimacy with a niddah or zavah.