Abu Dawud Book 34, Hadith Number 4551.

Chapter : Bloodwit for an unborn child.

Narated By N/A : Al-Mughirah b. Shu’bah said: A man of Hudhail had two wives. One of them struck her fellow-wife with a tent-pole and killed her and her unborn child. They brought the dispute to the Prophet (may peace be upon him). One of the two men said: How can we pay bloodwit for the one who did not make a noise, nor ate, nor drank, nor raised his voice? He (the Prophet) asked: Is it a rhymed prose like that of a bedouin? He gave judgment that a male or female slave of the best quality should be paid in compensation, and he fixed it to be paid by the woman’s relatives on her father’s side.