Yahya related to me from Malik from Yahya ibn Said from Bukayribn Abdullah al-Ashajj from an-Numan ibn Abi Ayyash al Ansari from Ataibn Yasar that a man came and asked Abdullah ibn Amr ibn al-As about aman who divorced his wife three times before he had had intercoursewith her Ata said, "The divorce of the virgin is one. Abdullah ibn Amribn al-As said to me, 'You say one pronouncement separates her andthree makes her haram until she has married another husband.' "
USC-MSA web (English) reference: Book 29, Hadith 38
Arabic reference: Book 29, Hadith 1196