It is related that Al-Mustanjid Billah son of Al-Muqtafi saw during his father’s life-dream in which an angel descended and wrote four times the Arabic letter ‘H’ in the palm of his hand. When Al-Mustanjid woke up, he told the dream to an interpreter who replied: “You will receive the Caliphate from your father in the year five hundred fifty-five, and already five months and five days have passed.” Al-Mustanjid became the Caliph as foretold by the dream interpreter.
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