Muwatta Malik 1157
موطأ مالك#1157SahihThese are the words of a Successor — the generation after the Companions — not of the Prophet ﷺ.
وَحَدَّثَنِي عَنْ مَالِكٍ، عَنْ يَحْيَى بْنِ سَعِيدٍ، عَنِ الْقَاسِمِ بْنِ مُحَمَّدٍ، . أَنَّ رَجُلاً، كَانَتْ تَحْتَهُ وَلِيدَةٌ لِقَوْمٍ فَقَالَ لأَهْلِهَا شَأْنَكُمْ بِهَا . فَرَأَى النَّاسُ أَنَّهَا تَطْلِيقَةٌ وَاحِدَةٌ .
Yahya 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
The label above is the grade most of these scholars gave — one dissenting opinion no longer speaks for all of them. If any scholar calls a narration fabricated, that verdict is shown instead, whatever the others say. Each scholar's own wording:
In-book reference: 29:8