Al- BAYYINAH, a Quranic term, applies to such manifest truth as is outstanding in its quality of dazzling brilliance, as though the sun had risen and the night dispelled. It appears with the appearance of all Divine messengers who usher in a new era of light. It does not relate to the beginning of Islam alone; it relates to the beginning of all Divine manifestations. When a messenger comes to revolutionize a society, he personifies Al-Bayyinah of which he himself is the harbinger.