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הזהירנו מגלות ערות אחות אשתו בחיי אשתו. והוא אמרו ואשה אל אחותה לא תקח. והעובר על לאו זה בכרת אם הוא מזיד ובשוגג יקריב קרבן חטאת קבועה: He prohibited us from sexual intercourse with the sister of his wife during the lifetime of his wife. And that is His, may He be blessed, saying, "You shall not take a woman and her sister" (Leviticus 18:18). And one who transgresses this negative commandment is [punished] by excision if it was volitional. But [if] inadvertent, he must sacrifice a fixed sin-offering.