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"
Sunan Abi Dawud Book 41, Hadith 86
← Previous Hadith A woman threw a stone at another woman and she aborted. The dispute was brought to the Messenger of Allah (ﷺ). He gave judgment that five hundred sheep should be paid for her (unborn) child, and forbade throwing stones.

Abu Dawud said: The version of this tradition goes in this way, i.e. five hundred sheep. What is correct is one hundred sheep. Abu Dawud said: 'Abbas transmitted this tradition this way, but it is misunderstanding.

Sunan Abi Dawud Book 41, Hadith 85 Next Hadith → The price of a male or a female slave is five hundred dirhams.

Abu Dawud said: Rabi'ah said: The price of a male or a female slave is fifty dinars.

Sunan Abi Dawud Book 41, Hadith 87