Under the Ritsuryo system, the state issued certificates to monks and nuns who had permission to take monastic vows. This document is Enchin's doen certificate from when he officially became a monk of the Tendai Order at the age of 19 under his teacher Gishin, and ordination kugen certificate from when he took the Mahayana Bodhisattva vow at Enryaku-ji Temple's precepts platform. Below Enchin's name and age is a record for identity verification, stating that Enchin was from Kanakura Village, Naka District, Sanuki Province (present-day Konzoji Town, Zentsuji City, Kagawa Prefecture), born as the eldest son of Wake no Yakanari and given the secular name Hiro'o.