«إن الغادر ينصب له لواء يوم القيامة فيقال: ألا هذه غدرة فلان بن فلان»
The Prophet (peace and blessings be upon him) said:
"Indeed, on the Day of Resurrection a banner will be raised for the betrayer (the one who breaks his pledge), and it will be said: 'Behold! This is (the mark of) the betrayal of so-and-so, son of so-and-so.'"
Hadith Referenceصحیح الجامع الصغیر / حرف الألف / 1682