It is narrated from Sayyiduna Abu Hurairah, may Allah be pleased with him, that two women from the tribe of Huzail fought with each other. One struck the other on the (abdomen), causing her pregnancy to miscarry. So the Messenger of Allah ﷺ ruled that, in this case, a slave man or slave woman should be given as blood money.
Hadith Referenceالسنن المأثورة / باب عقل الجنين / 593
Hadith Takhrijصحیح بخاری، الطب، باب الکھانة رقم: 5760، 5759، صحیح مسلم، القسامة، باب دیة الجنین، رقم: 1681۔