Abu Dawud

´It was narrated from 'Umar bin Khattab that :` he asked the people about the ruling of the Prophet (ﷺ) concerning that - concerning a fetus. Hamal bin Malik bin Nabighah stood up and said: “I was between my two wives and one of them struck the other with a tent-pole, killing her and a fetus. The Messenger of Allah (ﷺ) ruled that the blood money for the fetus was a slave, and that she would be killed in retaliation.”

´It was narrated that Ibn 'Abbas said; "There were two women neighbors between whom there was some trouble. One of them threw a rock at the other a she miscarried a boy - whose hair had already grown -0 who was or dead, and the woman died too. He ruled that the 'Aqilah had to pay the Diyah. Her paternal uncle said:` 'O Messenger of Allah, she miscarried a boy whose hair had grown.' The father of the killer said: "He is lying. By Allah he never cried or shouted (at the moment of birth), nor drank nor ate. Such a one should be overlooked.' The Prophet said: 'rhyming verse like the verse of the Jahiliyyah and of its soothsayers? A slave must be given (as Diyah) for the boy, ''' Ibn 'Abbes said; "One of then was Mulaikah and the other was Umm Ghatif."

Abu Hurairah (RAA) narrated “Two woman of the tribe of Hudhail fought with each other and one of them threw a stone at the other. In this way she killed the woman and what was in her womb (as she was pregnant). Their dispute was presented to the Prophet (ﷺ) who ordained that the Diyah (blood money) of the unborn child, is a male or a female slave of the best quality. He also decided that the Diyah of the woman is to be paid by her relatives (the one who killed) on her father’s side. The Messenger of Allah (ﷺ) also ordained that her inheritance (of the woman who killed as she died later) be for her sons and husband (and not for her relatives who had to pay the Diyah). Hamal bin An-Nabighah Al-Hudhaili then said, ‘O Messenger of Allah! Why should I pay the Diyah for one who neither drank nor ate nor spoke, nor cried (i.e. the dead fetus), such a creature is not entitled to blood money.’ The Messenger of Allah (ﷺ) then said, “This man is one of the brothers of the soothsayers,” on account of the rhymed speech which he used, concerning the dead fetus. Abu Dawud and An-Nasa’i narrated on the authority of Ibn ’Abbas that 'Umar (RAA) asked about the judgment of the Prophet (ﷺ) concerning the Diyah of the dead fetus. Hamal bin An-Nabighah Al-Hudhaili then got up and said, “I was between the two women. One of them struck the other with a stone, killing her and what was in her womb. So the Messenger of Allah (ﷺ) ordained....” (as above). Ibn Hibban and al-Hakim graded it as Sahih.