Muwatta Malik 1050
موطأ مالك#1050SahihThese are the words of a Companion, not of the Prophet ﷺ. The chain is graded on its own terms.
حَدَّثَنِي يَحْيَى، عَنْ مَالِكٍ، عَنْ نَافِعٍ، عَنْ عَبْدِ اللَّهِ بْنِ عُمَرَ، أَنَّهُ كَانَ يَقُولُ إِذَا نُحِرَتِ النَّاقَةُ فَذَكَاةُ مَا فِي بَطْنِهَا فِي ذَكَاتِهَا إِذَا كَانَ قَدْ تَمَّ خَلْقُهُ وَنَبَتَ شَعَرُهُ فَإِذَا خَرَجَ مِنْ بَطْنِ أُمِّهِ ذُبِحَ حَتَّى يَخْرُجَ الدَّمُ مِنْ جَوْفِهِ .
Yahya related to me from Malik from Nafi that Abdullah ibn Umar said, "When a she-camel is slaughtered, what is in its womb is included in the slaughter if it is perfectly formed and its hair has begun to grow. If it comes out of its mother's womb, it is slaughtered so that blood flows from its heart
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: 24:9