Commentary on the Mahāvairocana Sūtra (Mahāvairocana Sūtra Commentary), recorded by Yixing (Taishō No. 1796). It explains Acala as one who long ago attained buddhahood on Mahāvairocana's lotus dais, yet takes the form of a servant to attend the Tathāgata and carry out his many tasks, and it describes his rock seat as Sumeru, king of mountains, that is, the pure mind of awakening. The words "Fudō is the mind of true and pure awakening," quoted under "An unshakable mind" above, come from this commentary.
Shunnyū (Ishiyama Naigu), comp., Yōson dōjōkan (also called Ishiyama dōjōkan) (Taishō No. 2468). Tenth century, Ishiyama-dera. One of the earliest extant Shingon ritual handbooks, containing the visualization of the practice hall for Fudō, the Nineteen Contemplations, the contemplation of placing nineteen syllables on the body, and the fourteen root mudrās. The Nineteen Contemplations and the visualization of the sword in this article follow this text.
Jitsuun, Shoson yōshō (Taishō No. 2484). Twelfth century. Contains the use of the Jiku-shu and the fire-realm mantra in the Fudō rite, the Nineteen Contemplations, and the procedure for the eight thousand milk-wood sticks.
Kōnen, Gojikkanshō, part 32, the Fudō rite (Shingonshū Zensho, vol. 30, pp. 201-205). A late-twelfth-century compendium of ritual practice. It quotes the Nineteen Contemplations in full, stating "The Ishiyama dōjōkan says," and notes for each article its source in the Teiri sutra or the Commentary on the Mahāvairocana Sūtra. The same part also contains sections on the eight thousand sticks and on their meaning.
Kyōshun, Hishō kuketsu, part 20, the Fudō rite (Shingonshū Zensho, vol. 28, pp. 322 ff.; the eight thousand sticks on p. 332). It states that although there are many separate rites for the various deities, the only ones handed down at Tō-ji are Fudō's eight thousand sticks and the Kokūzō gumonji practice, and it teaches that the eight thousand sticks are performed solely for averting calamity. As oral teaching, it records even the wood for the milk-wood sticks, how they are cut, and how many times the rite was actually performed.
Ryūgyō, Saiin-ryū Nōzenbō denjuroku (Shingonshū Zensho, vol. 32, p. 97 and elsewhere). A record of the procedures of the preliminary training (kegyō). It assigns the Jiku-shu to the central recitation and the fire-realm mantra and the Jiku-shu to the general recitation, and hands down the visualization of the practice hall in which the seed syllable hāṃ turns into a sword of wisdom and the sword turns into Fudō Myōō.
Dōchō et al., Sanbōin-ryū Tōsen sōjō kuketsu (Shingonshū Zensho, vol. 34, pp. 154-155). It records that the Nineteen Contemplations come from the Ishiyama dōjōkan, as handed down by Shunnyū.
Shunnyū, Shishu goma shōki (Shingonshū Zensho, vol. 26, pp. 7-82). A tenth-century ritual handbook of Ishiyama-dera on the four kinds of goma, for averting calamity, increasing benefit, love and respect, and subjugation, and on how each is performed.
A commentary collected in Shingonshū Zensho, vol. 36 (pp. 385-386). It regards Fudō's samaya form as the pair of sword and rope, expressing the nonduality of principle and wisdom, and explains one by one the meaning of the rock, the two eyes, the two attendant boys, and Kurikara.
Shingonshū Zensho, 42 vols., Shingonshū Zensho Kankōkai. The basic collection of Shingon writings on doctrine and ritual practice.