Riyad as-SalihinChapter 18Hadith 1166
Full Sharh — Riyad as-Salihin 1166
وعن ابن مسعود رضي الله عنه قال: قال النبي صلى الله عليه وسلم : "أول ما يقضى بين الناس يوم القيامة في الدماء" ((متفق عليه)).
English 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."
Source
Riyad as-Salihin(رياض الصالحين)
The Book of Miscellaneous ahadith of Significant Values
Hadith Number
1166