سُنَنُ النَّسَائِيِّ
Sunan an-Nasa’i 3996
The Book of Fighting [The Prohibition of Bloodshed]
The Gravity of the Sin of Shedding Blood
أَخْبَرَنَا مُحَمَّدُ بْنُ الْعَلاَءِ، قَالَ حَدَّثَنَا أَبُو مُعَاوِيَةَ، قَالَ حَدَّثَنَا الأَعْمَشُ، عَنْ شَقِيقٍ، عَنْ عَبْدِ اللَّهِ، قَالَ أَوَّلُ مَا يُقْضَى بَيْنَ النَّاسِ فِي الدِّمَاءِ .
It was narrated that 'Abdullah said: "The first matter concerning which scores will be settled among the people will be bloodshed."
Sunan an-Nasa'i, 3996Sahih (Darussalam)