吽迦陀野儀軌 1.23

1.23

「若欲此法修，先當可擇求佛前塔前僧房，若河邊林下蘭若，又心所愛樂無難所，是為上悉地。是所行修真言者，當可令出髑髏死骨、瓦石等惡苦穢物。然後行者至淨所，取淨土作壇曼陀羅等，而後修真言法。若取土時，佛部以真言加持，然後取土作用壇：其壇扇底迦圓、補瑟微迦法四角、阿毘遮嚕迦法八角，各八肘作，又作五三肘。加持作壇地真言曰：

"If one wishes to cultivate this ritual, one should first select and seek a place before a Buddha, before a stūpa, in a monk's chamber, or an araṇya by a river or under trees, or a place that one loves and is free of hindrances; this is for superior siddhi. The practitioner cultivating the mantra must have skull bones, dead bones, tiles, stones, and other evil, distressing, and filthy objects removed from that place. Thereafter, the practitioner goes to the pure place, takes pure earth to construct an altar maṇḍala, and then cultivates the mantra ritual. When taking the earth, empower it with the mantra of the Buddha family, and then take the earth to construct the altar: the altar is circular for śāntika, square for pauṣṭika rituals, and octagonal for abhicāraka rituals; make each eight cubits, or make them five or three cubits. The mantra for empowering and constructing the altar ground is:"