Yahya related to me from Malik from Ibn Shihab from Ubaydullahibn Abdullah ibn Utba ibn Masud from his father that Umar ibn al-Khattab was asked about a woman and her daughter who were in thepossession of the right hand, and whether one could have intercoursewith one of them after the other Umar said, "I dislike both beingpermitted together." He then forbade that.
USC-MSA web (English) reference: Book 28, Hadith 33
Arabic reference: Book 28, Hadith 1127