Sahih al-Bukhari
Sahih al-Bukhari 2487
حَدَّثَنَا مُحَمَّدُ بْنُ عَبْدِ اللَّهِ بْنِ الْمُثَنَّى، قَالَ حَدَّثَنِي أَبِي قَالَ، حَدَّثَنِي ثُمَامَةُ بْنُ عَبْدِ اللَّهِ بْنِ أَنَسٍ، أَنَّ أَنَسًا، حَدَّثَهُ أَنَّ أَبَا بَكْرٍ ـ رضى الله عنه ـ كَتَبَ لَهُ فَرِيضَةَ الصَّدَقَةِ الَّتِي فَرَضَ رَسُولُ اللَّهِ صلى الله عليه وسلم قَالَ " وَمَا كَانَ مِنْ خَلِيطَيْنِ فَإِنَّهُمَا يَتَرَاجَعَانِ بَيْنَهُمَا بِالسَّوِيَّةِ ".
Muhammad ibn Abd Allah ibn al-Muthanna narrated to us, saying: My father told me: Thumama ibn Abd Allah ibn Anas told me that Anas related to him that Abu Bakr (may Allah be pleased with him) wrote for him the prescribed charity schedule that the Messenger of Allah (peace and blessings be upon him) had made obligatory. He wrote: ‘When two co-owners have mixed property, they settle their shares between themselves equally.’
Translation notes
The Arabic uses a term for two people whose property is mixed together and says they settle between themselves equally. It does not specify sheep in this excerpt.