مِشْكَاةُ الْمَصَابِيحِ
Mishkat al-Masabih 3726
The Offices of Commander and Qadi
The Duty of Rulers to make Things Easy - Section 1
وَعَنْ أَنَسٍ عَنِ النَّبِيِّ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ قَالَ: «لِكُلِّ غَادِرٍ لِوَاءٌ يومَ القيامةِ يُعرَفُ بِهِ»
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.)
Mishkat al-Masabih, 3726مُتَّفَقٌ عَلَيْهِ (الألباني)