Sahih al-Bukhari 7317, 7318
Narrated Al-Mughira bin Shu`ba:
`Umar bin Al-Khattab asked (the people) about the Imlas of a woman, i.e., a woman who has an 
abortion because of having been beaten on her `Abdomen, saying, "Who among you has heard 
anything about it from the Prophet?" I said, "I did.'' He said, "What is that?" I said, "I heard the 
Prophet saying, "Its Diya (blood money) is either a male or a female slave.' " `Umar said, "Do not 
leave till you present witness in support of your statement." So I went out, and found Muhammad bin 
Maslama. I brought him, and he bore witness with me that he had heard the Prophet (ﷺ) saying, "Its Diya 
(blood money) is either a male slave or a female slave."
حَدَّثَنَا مُحَمَّدٌ، أَخْبَرَنَا أَبُو مُعَاوِيَةَ، حَدَّثَنَا هِشَامٌ، عَنْ أَبِيهِ، عَنِ الْمُغِيرَةِ بْنِ شُعْبَةَ، قَالَ سَأَلَ عُمَرُ بْنُ الْخَطَّابِ عَنْ إِمْلاَصِ الْمَرْأَةِ ـ هِيَ الَّتِي يُضْرَبُ بَطْنُهَا فَتُلْقِي جَنِينًا ـ فَقَالَ أَيُّكُمْ سَمِعَ مِنَ النَّبِيِّ صلى الله عليه وسلم فِيهِ شَيْئًا فَقُلْتُ أَنَا‏.‏ فَقَالَ مَا هُوَ قُلْتُ سَمِعْتُ النَّبِيَّ صلى الله عليه وسلم يَقُولُ ‏"‏ فِيهِ غُرَّةٌ عَبْدٌ أَوْ أَمَةٌ ‏"‏‏.‏ فَقَالَ لاَ تَبْرَحْ حَتَّى تَجِيئَنِي بِالْمَخْرَجِ فِيمَا قُلْتَ‏.فَخَرَجْتُ فَوَجَدْتُ مُحَمَّدَ بْنَ مَسْلَمَةَ فَجِئْتُ بِهِ، فَشَهِدَ مَعِي أَنَّهُ سَمِعَ النَّبِيَّ صلى الله عليه وسلم يَقُولُ ‏"‏ فِيهِ غُرَّةٌ عَبْدٌ أَوْ أَمَةٌ ‏"‏‏.‏ تَابَعَهُ ابْنُ أَبِي الزِّنَادِ عَنْ أَبِيهِ عَنْ عُرْوَةَ عَنِ الْمُغِيرَةِ‏.‏