וְ֠אִישׁ אֲשֶׁר־יִשְׁכַּ֨ב אֶת־אִשָּׁ֜ה דָּוָ֗ה וְגִלָּ֤ה אֶת־עֶרְוָתָהּ֙ אֶת־מְקֹרָ֣הּ הֶֽעֱרָ֔ה וְהִ֕יא גִּלְּתָ֖ה אֶת־מְק֣וֹר דָּמֶ֑יהָ וְנִכְרְת֥וּ שְׁנֵיהֶ֖ם מִקֶּ֥רֶב עַמָּֽם׃
누구든지 경도하는 여인과 동침하여 그의 하체를 범하면 남자는 그 여인의 근원을 드러내었고 여인은 자기의 피 근원을 드러내었음인즉 둘 다 백성 중에서 끊어지리라
Sha'arei Kedusha
Relations with a menstruating woman, is punished with excision (Karet).645Leviticus 18:19; Leviticus 20:18; Mishneh Torah, Hilchot Issurei Biyah, Ch. 1, Ch. 4 Aside for that, it states in Zohar,646Zohar II 3a-b “There are three types of people who push the Indwelling Presence of HaShem-יהו״ה, blessed is He (the Shechinah) from the world. When such people cry out in prayer, their voices are not heard. These are them: One who has relations with a menstruating woman, for there is no greater impurity in the world than the impurity of relations with a menstruating woman.”