The need to keep the Caliphate in the hands of the Quraish causes Caliph Haroun to put his son Al-Amin, a son on the Quraish from both sides of his family, in line for succession despite the intelligence, astuteness and wisdom of his eldest son Al-Ma'moun, son of his Persian concubine
The series revolves around Harun Al Rashid's dilemma over which of his two sons he should choose as his successor, Mohammad who's called Al Amin or Abdullah who's called Al Maamoun
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