It is narrated from Sayyiduna Ibn Amr, may Allah be pleased with him, that regarding the compensation (diyah) for a fetus, that is, a child in the mother's womb (if someone kills it), the Prophet Muhammad, peace and blessings be upon him, decreed one "ghurra," that is, a male or female slave. This decision was made by the Prophet, peace and blessings be upon him, concerning the wife of Sayyiduna Haml bin Malik bin Nabigha Hudhali, may Allah be pleased with him.
Hadith Referenceمسند احمد / مسند المكثرين من الصحابة / 7026
Hadith Gradingحکم دارالسلام:صحيح لغيره، وهذا إسناد ضعيف، ابن إسحاق مدلس، ولم يصرح هنا بالتحديث.