There will be for every perfidious person on the Day of Judgment a flag by which he will be recognised. It will be announced: Here is the breach of faith of so and so.
قَالَ رَسُولُ اللَّهِ ﷺ لِكُلِّ غَادِرٍ لِوَاءٌ يَوْمَ الْقِيَامَةِ يُعْرَفُ بِهِ يُقَالُ هَذِهِ غَدْرَةُ فُلاَنٍ