It was narrated that Abu Hurairah said:
"The Messenger of Allah (ﷺ) ruled concerning a fetus that (the blood money) was a slave, male and female. The one against whom this verdict was passed said: ' Should we pay blood money for one who neither ate, drunk, shouted, nor cried, (at the moment of birth)? One such as this should be overlooked .' The Messenger of Allah (ﷺ) said: 'This man speaks like a poet. (But the blood money for a fetus is) a slave, male, or female.'"
English reference: Vol. 3, Book 21, Hadith 2639
Arabic reference: Book 21, Hadith 2741