When Allah, the Almighty, gathers together (on the Day of Judgment) all the earlier and later generations of mankind, a banner will be raised for every betrayer, and it will be said: 'This is the betrayal of so-and-so, the son of so-and-so.[Al-Bukhari]

إذا جمع الله -عز وجل- الأَوَّلِينَ والآخِرين: يرفع لكل غادر لِوَاءٌ، فيقال: هذه غَدْرَةُ فلان بن فلان. رواه البخاري