A brief assortment of ?Abd al-?am?d's letters along with his prolegomenon is considered his early operate.[three] In his Highly developed age, ?Abd al-?am?d retired to Patna, from in which he was summoned by Shah Jah?n to jot down Formal chronicle of his reign on the advice of his grand vizier Nawab Sa?dall?h Khan, as emperor required someone that