Muwatta Malik 1276
موطأ مالك#1276SahihThese are the words of a Companion, not of the Prophet ﷺ. The chain is graded on its own terms.
وَحَدَّثَنِي عَنْ مَالِكٍ، عَنِ ابْنِ شِهَابٍ، عَنْ عَمْرِو بْنِ الشَّرِيدِ، أَنَّ عَبْدَ اللَّهِ بْنَ عَبَّاسٍ، سُئِلَ عَنْ رَجُلٍ، كَانَتْ لَهُ امْرَأَتَانِ فَأَرْضَعَتْ إِحْدَاهُمَا غُلاَمًا وَأَرْضَعَتِ الأُخْرَى جَارِيَةً فَقِيلَ لَهُ هَلْ يَتَزَوَّجُ الْغُلاَمُ الْجَارِيَةَ فَقَالَ لاَ اللِّقَاحُ وَاحِدٌ .
Yahya related to me from Malik from Ibn Shihab from Amr ibn ash- Sharid that Abdullah ibn Abbas was asked whether, if a man had two wives, and one of them nursed a slave-boy, and the other had nursed a slave-girl, could the slave-boy marry the slave-girl. He said, "No. The husband is the same
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: 30:5