It was narrated that Abu Hurairah said:
"The Messenger of Allah said: 'Whoever has intercourse with a menstruating woman, or with a woman in her rear, or who goes to a fortuneteller and believes what he says, he has disbelieved in that which was revealed to Muhammad.'" (ES)
English reference (ES): Vol. 1, Book 1, Hadith 639 (ES)
Arabic reference (ES): Book 1, Hadith 682 (ES)