Yahya related to me from Malik from Yahya ibn Said from al-Qasimibn Muhammad that a certain man had taken a slave-girl belonging tosomebody else as a wife. He said to her people, "She is your concern,"and people considered that to be one pronouncement of divorce.
USC-MSA web (English) reference: Book 29, Hadith 8
Arabic reference: Book 29, Hadith 1160