Hadith.4473 - Ali ibn Ri'ab narrated from Abdullah ibn Bukayr from his father, from one of the Imams (as), regarding a eunuch who deceived a Muslim woman and married her.
Imam (as) said
"They shall be separated if the woman so desires, and his head shall be struck as a punishment.
However, if she accepts him and decides to stay with him after learning the truth, she will no longer have the right to reject him later."