“No person is killed wrongfully, but a share of responsibility for his blood will be upon, the first son of Adam, because he was the first one to kill.” (Using translation from Ibn Mājah 2616)
قَالَ رَسُولُ اللهِ ﷺ لَا تُقْتَلُ نَفْسٌ ظُلْمًا إِلَّا كَانَ عَلَى ابْنِ آدَمَ الْأَوَّلِ كِفْلٌ مِنْ دَمِهَا لِأَنَّهُ كَانَ أَوَّلَ مَنْ سَنَّ الْقَتْلَ