Reply To: Covering hair once married.

The Rambam in Issurei Biah (I believe 21:1) says that Negiah is D’oraisa. No one really disagrees. The Ramban brings down a Deah that it might be D’rabannan but even he doesn’t hold like it. According to the Rambam it would be Yeherav V’al Ya’avor. However, the majority seems to agree with Tosafos that Negiah is it’s own Issur and isn’t considered Giluy Arayos and therefore would not be Yeherag V’al Ya’avor.