Urwah narrates from Sayyidah Aishah (may Allah be pleased with her) that Barirah (may Allah be pleased with her) was married to a slave. When she was freed, the Messenger of Allah (peace and blessings be upon him) placed her matter in her own hands.
Hadith Referenceالسنن الكبرى للبيهقي / كتاب النكاح / 14261