Ubaydullah bin Abdullah bin Utbah narrates from his father that Sayyiduna Umar bin al-Khattab (may Allah be pleased with him) was asked about a mother and daughter who are in one person's ownership: may intercourse be had with one of them after the other? Sayyiduna Umar (may Allah be pleased with him) said: I do not consider both of them together permissible. In the narration of Abu Ahmad it is: I do not consider them permissible.
Hadith Referenceالسنن الكبرى للبيهقي / كتاب النكاح / 13932