(2) باب تَعْظِيمِ الدَّمِ
It was narrated that 'Abdullah bin 'Amr said:
"Killing a believer is more grievous before Allah than the extinction of the whole world." (ES)
Reference (ES): Sunan an-Nasa'i 3988 (ES)
In-book reference (ES): Book 37, Hadith 23 (ES)
English translation (ES): Vol. 5, Book 37, Hadith 3993 (ES)