 Famous Sheikhs, Imams, and prominent figures in Islam, such as Abusaeid Abolkheir or Rumi or Al-Khidr, were believed to possess "keramat", and writings from medieval Islam are full of stories and reports of certain individuals possessing such a trait.For example, Idries Shah and Robert Graves mention the case where senior members of the Azimia order were "reputed to appear, like many of the ancient Sheikhs at different places at one and the same time".Many other examples can be found in Attar's "Tadhkirat al-Awliya" ("Biographies of the Saints") or the works of Ibn Arabi, as well as other similar chronicles.