Ahadith about Dajjal and Portents of the Hour Riyad as-Salihin 1845
Arabic hadith text
وعن ابن مسعود رضي الله عنه قال: قال النبي صلى الله عليه وسلم : "أول ما يقضى بين الناس يوم القيامة في الدماء" ((متفق عليه)).
Translation
Ibn Mas'ud (May Allah be pleased with him) reported
The Prophet (ﷺ) said, "The first matter concerning which people will be judged on the Day of Resurrection will be the matter of blood."[Al-Bukhari and Muslim]