The Book Pertaining to the Oath, for Establishing the Responsibility of Murders, Fighting, Requital and Blood-Wit (Kitab Al-Kitab Al-Qasama wa'l-Muharaba wa'l-Qisas wa'l-Diyat)
Muslim :: Book 16 : Hadith 4166
Abu Huraira reported that among two women of the tribe of Hudhail one flung a stone upon the other causing an abortion to her Allah's Apostle (may peace he upon him) gave judgment that a male or a female slave of best quality be given as compensation.