Al-Hudhali (may Allah be pleased with him) narrates that he had a wife, and then he married another woman in addition to her. The two became jealous of each other, and the Hilali woman struck the Amiri woman with a pole of my tent, and she miscarried a dead child. The Messenger of Allah (peace and blessings be upon him) said to them: "Pay its blood money." Then the guardian of that (striking) woman came and said: Shall I pay blood money for one who neither ate, nor drank, nor cried out? The blood of such a one is simply let go. He ((peace and blessings be upon him)) said: "Is this the rhymed speech of the Bedouins? Yes, pay its blood money; for it a male or female slave is due."
Hadith Referenceالمعجم الكبير للطبراني / باب الحاء / 3470