´It was narrated that 'Abdullah said:` "The first matter concerning which scores will be settled among the people on the Day of Resurrection will be bloodshed."
Hadith Referenceسنن نسائي / كتاب تحريم الدم / 3999
Hadith Gradingالألبانی:صحيح موقوف وهو في حكم المرفوع | زبیر علی زئی:حسن