Muwatta Malik #1182
Marriage
Yahya related to me from Malik from Ibn Shihab from Ubaydullah
ibn Abdullah ibn Utba ibn Masud from his father that Umar ibn al-
Khattab was asked about a woman and her daughter who were in the
possession of the right hand, and whether one could have intercourse
with one of them after the other Umar said, "I dislike both being
permitted together." He then forbade that.
About Muwatta Malik
This hadith is #1182 from Muwatta Malik, in the Book of Marriage. Muwatta Malik contains 1,985 hadiths across 61 books.