(2) باب تَعْظِيمِ الدَّمِ
It was narrated that 'Abdullah said:
"The first matter concerning which scores will be settled among the people will be bloodshed."
Reference: Sunan an-Nasa'i 3996
In-book reference: Book 37, Hadith 31
English translation: Vol. 5, Book 37, Hadith 4001