Anas reported the Prophet (ﷺ) as saying, “Every perfidious one will have a standard on the day of resurrection by which he will be recognized.” (Bukhari and Muslim.)

وَعَنْ أَنَسٍ عَنِ النَّبِيِّ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ قَالَ: «لِكُلِّ غَادِرٍ لِوَاءٌ يومَ القيامةِ يُعرَفُ بِهِ»