Chapter: The punishment for bloodshed in the hereafter, and bloodshed will be the first thing concerning which judgement is passed among the people on the Day of Resurrection
'Abdullah bin (Mas'ud) reported Allah's Messenger (ﷺ) as saying: The first (thing) that will be decided among people on the Day of Judgment will pertain to bloodshed.
Hadith Referenceصحيح مسلم / كتاب القسامة والمحاربين والقصاص والديات / 1678