The Kanjō samayakai 灌頂三昧耶戒 (Abhiṣeka Samaya Commitments), attributed to Ennin (円仁, 794–864), is known as the first text used in the ritual of giving and receiving the Samaya precepts 三昧耶戒. However, from long ago it was questioned whether this was a Chinese compilation, who the compiler was and what the process of compilation entailed.
The compiler briefly shows the tradition of Esoteric Buddhism with reference to Saichō’s 最澄 Naishō buppō sōjō kechimyakufu 内証仏法相承血脈譜. However, considering the sages said to have been involved in the transmission, some confusion is evident concerning the time of the introduction of Esoteric Buddhism into Japanese Tendai, and it is possible that the upper limit of the establishment of this text might be brought down to the time of Enchin 円珍 (814–891). Since Annen 安然 (841?–915?) added one sentence to the Introduction, it can be excluded that Annen is the author. This introduction also influenced the Tōmitsu 東密 tradition, and the Introduction was introduced into the ritual text once more, so this can be said to be a good example of the importance of Taimitsu’s 台密 tradition and precepts.
