he asked the people about the ruling of the Prophet ﷺ concerning that - concerning a fetus. Hamal bin Malik bin Nabighah stood up and said: “I was between my two wives and one of them struck the other with a tent-pole, killing her and a fetus. The Messenger of Allah ﷺ ruled that the blood money for the fetus was a slave, and that she would be killed in retaliation.” (Using translation from Ibn Mājah 2641)
أَنَّ عُمَرَ نَشَدَ النَّاسَ قَضَاءَ رَسُولِ اللَّهِ ﷺ فِي الْجَنِينِ فَقَامَ حَمَلُ بْنُ مَالِكِ بْنِ النَّابِغَةِ فَقَالَ كُنْتُ بَيْنَ امْرَأَتَيْنِ فَضَرَبَتْ إِحْدَاهُمَا الْأُخْرَى بِمِسْطَحٍ «فَقَضَى رَسُولُ اللَّهِ ﷺ فِي جَنِينِهَا بِغُرَّةٍ وَأَنْ تُقْتَلَ بِهَا»