On the Day of Judgment there will be a flag for every person guilty of the breach of faith. It will be raised in proportion to the extent of his guilt; and there is no guilt of treachery more serious than the one committed by the ruler of men. (Using translation from Muslim 1738b)
قَالَ رَسُولُ اللهِ ﷺ لِكُلِّ غَادِرٍ لِوَاءٌ يَوْمَ الْقِيَامَةِ يُرْفَعُ لَهُ بِقَدْرِ غَدْرَتِهِ أَلَا وَلَا غَادِرَ أَعْظَمَ غَدْرًا مِنْ أَمِيرِ عَامَّةٍ