This article considers the employment of travel literature in historical research and the associated methodological risks, mainly in relation to the traveller’s immediate interaction with the events he witnessed and the phenomena and conditions he described. Given the author’s proximity to the event and not taking enough time to read it closely, this engagement can at times lead to inaccurate deductions and interpretations. At others, it can convey an exaggerated image or attitude, especially if the author has an affinity for a particular side. This article focuses on the records of Nasir Khusraw’s journey to Egypt, featuring a description of the political climate and the administrative, military, and tax systems during the reign of the Fatimid caliph al-Mustanṣir. In addition to observations and descriptions, Nasir Khusraw also provides his positive impression of Egypt, at times without having given himself the span of time needed to objectively interpret the events he witnessed, the information he heard, and the experiences he had. Nasir Khusraw’s writings in Egypt, therefore, are rife with praise and commendation, in what may be explained by his Shi’i disposition and his adoption of the Ismaili school.