When Allah gathers together the

Ibn Umar رضى الله عنه reported: The Messenger of Allah صلى الله عليه وسلم said, “When Allah gathers together the earlier and later generations on the Day of Resurrection, He will raise a banner for every treacherous person and it will be announced that this is the treachery of so-and-so the son of so-and-so.”

[Sahih Muslim, Book 19, Number 4301]

Book of Jihad and Expeditions, Chapter: Prohibition of Treachery

عَنِ ابْنِ عُمَرَ قَالَ: قَالَ رَسُولُ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ إِذَا جَمَعَ اللَّهُ الأَوَّلِينَ وَالآخِرِينَ يَوْمَ الْقِيَامَةِ يُرْفَعُ لِكُلِّ غَادِرٍ لِوَاءٌ فَقِيلَ هَذِهِ غَدْرَةُ فُلاَنِ بْنِ فُلاَنٍ