hadith
8885
۞
Imam Ali (AS) said, Betraying [ones] agreements is one of the signs of vileness.
الإمامُ عليٌّ (عَلَيهِ الّسَلامُ) : مِنْ عَلاماتِ اللُّؤْمِ الغَدْرُ بِالمَواثيقِ