Musnad Abu Ya'la al-Mawsili 160:246

'Abd al-A'la narrated to us, Wahib narrated to us, from Dawud ibn Abi Hind, from 'Amir, from Abu Hurayrah, who said: The Messenger of Allah (may Allah bless him and grant him peace) forbade that a woman be married [as a co-wife] alongside her paternal aunt, or a maternal aunt alongside her sister's daughter. And the younger [woman] should not be married [as a co-wife] alongside the elder, nor the elder alongside the younger.