According to search-discovered classical Islamic scholarship, the concept of Al-'Ahd (العهد), translated as Agreement or Covenant, is a cornerstone of Islamic theology, ethics, and law. Al-Tabari, in his linguistic analysis, traces its root to mean a profound commitment and responsibility. This is not limited to a single type of promise; rather, as Ibn Kathir elaborates across numerous Quranic contexts, Al-'Ahd encompasses a spectrum of binding commitments. These range from the primordial covenant between Allah and humanity and the specific covenants with prophets, to interpersonal promises, legally binding contracts, and international treaties. The Quran emphatically commands its fulfillment in verses like 5:1 ("O you who have believed, fulfill [your] contracts") and 17:34 ("And fulfill [every] commitment. Indeed, the commitment is ever [that about which one will be] questioned"). Al-Qurtubi's juridical analysis highlights that honoring the 'Ahd is a defining trait of a believer (23:8) and a foundation of a just society, while its violation is a grave sin and a sign of hypocrisy. This synthesis of over 50 verses establishes Al-'Ahd not merely as a social courtesy, but as a sacred trust and a direct reflection of one's faith and integrity before God and creation.