Sunan Abi Dawud 4579
سنن أبي داود#4579HasanNarrated AbuHurayrah: The Messenger of Allah (ﷺ) gave judgment that a male or a female slave, or a horse or a mule should be paid for a miscarriage. Abu Dawud said: Hammad b. Salamah and Khalid b. 'Abd Allah transmitted this tradition from Muhammad b. 'Amr, but they did not mention "or a horse or a mule
Scholarly Authentication
We show the most cautious grade (weakest-wins) as the overall label. Individual scholars graded it as follows:
Al-AlbaniShadh
Muhammad Muhyi Al-Din Abdul HamidShadh
Zubair Ali ZaiIsnaad Hasan
In-book reference: 41:86