A short selection of ʿAbd al-Ḥamīd's letters together with his prolegomenon is taken into account his early do the job.[3] In his Sophisticated age, ʿAbd al-Ḥamīd retired to Patna, from where by he was summoned by Shah Jahān to put in writing Formal chronicle of his reign on the advice of his grand vizier Nawab Saʿdallāh Khan, as emperor