Well of Assistance treachery and betrayal (series of immortal days)

Contains the story of the seventy readers from the companions of the Prophet صلى الله عليه وسلم, their biography is purer than the sun at its zenith, and the moon when it follows it, and the day when it reveals it, they were among the best of Muslims, known among the Prophet's companions as the readers. The Prophet صلى الله عليه وسلم sent seventy of the best Muslims as callers to Allah, and they traveled until they reached the well of Mu'adh, where treachery and betrayal began, and what the Prophet صلى الله عليه وسلم feared happened, so they were all killed.