Sunan an-Nasa'i, Hadith 3985 ⓘ
It was narrated from 'Abdullah that: The Prophet [SAW] said: "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 set the precedence, of killing."
أَخْبَرَنَا عَمْرُو بْنُ عَلِيٍّ، عَنْ عَبْدِ الرَّحْمَنِ، قَالَ حَدَّثَنَا سُفْيَانُ، عَنِ الأَعْمَشِ، عَنْ عَبْدِ اللَّهِ بْنِ مُرَّةَ، عَنْ مَسْرُوقٍ، عَنْ عَبْدِ اللَّهِ، عَنِ النَّبِيِّ صلى الله عليه وسلم قَالَ " لاَ تُقْتَلُ نَفْسٌ ظُلْمًا إِلاَّ كَانَ عَلَى ابْنِ آدَمَ الأَوَّلِ كِفْلٌ مِنْ دَمِهَا وَذَلِكَ أَنَّهُ أَوَّلُ مَنْ سَنَّ الْقَتْلَ " .
also referenced under: Book 37, Hadith 20 (In-Book) & Volume 5, Book 37, Hadith 3990 (DarusSalam)