سنن ابن ماجه

It was narrated that Miswar bin Makhramah said: “Umar bin Khattab consulted the people concerning a woman who had been caused to miscarry. Al-Mughirah bin Shu'bah said: 'I saw the messenger of Allah (ﷺ) rule that a slave, male or female, be given as blood money (for a fetus).' 'Umar said: 'Bring me someone who will testify alongside you. So he brought Muhammad bin Maslamah to testify along with him.'”