At this time, according to Pires, most Sumatran kings were Muslim; from Aceh and south along the east coast to Palembang the rulers were Muslim, while south of Palembang and around the southern tip of Sumatra and up the west coast, most were not. In other Sumatran kingdoms, such as Pasai and Minangkabau the rulers were Muslim although at that stage their subjects and peoples of neighbouring areas were not, however, it was reported that the religion was continually gaining new adherents.