## Sefer HaMitzvot, Negative Commandments

###### Sefer HaMitzvot, Negative Commandments 332:1
[Sefer HaMitzvot, Negative Commandments 332:1](https://torahapp.org/share/book/Sefer%20HaMitzvot/s/Negative%20Commandments/r/332:1)

הזהיר מגלות ערות אחותו. והוא אמרו ערות אחותך בת אביך או בת אמך לא תגלה ערותן, והעובר על לאו זה במזיד חייב כרת ובשוגג יקריב קרבן חטאת קבועה:

**Sefaria Edition 2021, Translated by Rabbi Francis Nataf:**
He prohibited sexual intercourse with the sister. And that is His saying, "The nakedness of your sister, your father's daughter or your mother's daughter [...] - you shall not uncover their nakedness" (Leviticus 18:9). And one who transgresses this negative commandment volitionally is liable for excision. But if it was inadvertent, he must sacrifice a fixed sin-offering.