The Sabians, sometimes also spelled Sabaeans or Sabeans, are a mysterious religious group mentioned three times in the Quran, where it is implied that they belonged to the 'People of the Book'. Their original identity, which seems to have been forgotten at an early date, has been called an "unsolved Quranic problem". Modern scholars have variously identified them as Mandaeans, Manichaeans, Sabaeans, Elchasaites, Archontics, ḥunafāʾ, or as adherents of the astral religion of Harran. Some scholars believe that it is impossible to establish their original identity with any degree of certainty.
First part of Quran 5:69, Maghrebi manuscript, c. 1250–1350
Mandaean Sabian court for marital dispute, Ahvaz, Iran (2015)
People of the Book or Ahl al-kitāb is an Islamic term referring to followers of those religions which Muslims regard as having been guided by previous revelations, generally in the form of a scripture. In the Quran they are identified as the Jews, the Christians, the Sabians, and—according to some interpretations—the Zoroastrians. Starting from the 8th century, some Muslims also recognized other religious groups such as the Samaritans, and even Buddhists, Hindus, and Jains, as People of the Book.
The Ashtiname of Muhammad, a treaty between Muslims and Christians, was purportedly recorded between Muhammad and Saint Catherine's Monastery, which is depicted in this icon.