Muwatta Malik 1157
موطأ مالك#1157SahihYahya related to me from Malik from Yahya ibn Said from al-Qasim ibn Muhammad that a certain man had taken a slave-girl belonging to somebody else as a wife. He said to her people, "She is your concern," and people considered that to be one pronouncement of divorce
Scholarly Authentication
We show the most cautious grade (weakest-wins) as the overall label. Individual scholars graded it as follows:
Salim al-HilaliMaqtu Sahih
In-book reference: 29:8