It is narrated from Sayyiduna Haml bin Nabighah (may Allah be pleased with him), he says: I was between the houses of my two wives, one of them struck the other with a stick, as a result of which that woman died and her unborn child was also lost. The Noble Prophet (peace and blessings be upon him) decided that for the unborn child, a slave man or woman would be given, and the woman (who struck) would be killed in retribution.