مِشْكَاةُ الْمَصَابِيحِ
Mishkat al-Masabih 3448
Retaliation
Section 1
وَعَنْ عَبْدِ اللَّهِ بْنِ مَسْعُودٍ قَالَ: قَالَ رَسُولُ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ: «أَوَّلُ مَا يُقْضَى بَيْنَ النَّاسِ يَوْمَ الْقِيَامَةِ فِي الدِّمَاء»
‘Abdallah b. Mas'ud reported God’s Messenger as saying, “Shedding of blood will be the first matter about which judgment will be given on the day of resurrection.” (Bukhari and Muslim.)
Mishkat al-Masabih, 3448مُتَّفَقٌ عَلَيْهِ (الألباني)