Musannaf Ibn Abi Shayba 13:2867

Abu Bakr narrated to us, he said: Ibn Idris narrated to us, from Hisham, from al-Hasan, he said: There is no harm in it if she is described or he is described. And Waki’ said: The captives, they are not to be separated from one another. As for the children born in captivity, when they are no longer in need of their mothers, there is no harm in it.