大乘義章 12.122

12.122

次明受持八戒之儀。欲受戒者，應先起其厭生死心、求涅槃意，然後受之，以此所受出世戒故。受法云何？於六齊日清旦之時，詣戒師所，先禮三寶，次禮戒師。在戒師前長跪合掌，先懺諸罪，然後受戒。戒師教之，三歸三寶。三稱歸竟，與受五戒，沙彌戒同。然後題上所列法，問其能不。言：一不殺生是優婆塞戒。若女人受，應言是優婆夷戒。從今時至明清旦，一日一夜受，如諸佛，能持不？受者應答言能。如是乃至不過中食，問答同爾。一遍便足，竟已禮去。護持之法，與出家戒同。嚴身之具悉宜去之，男女不得同室而宿。八戒如是。

Next, the ritual for receiving and observing the eight precepts is explained. One who wishes to receive the precepts should first arouse a mind of revulsion toward saṃsāra and an aspiration to seek nirvāṇa, and only then receive them, because what is received here are supramundane precepts. What is the method of reception? At dawn on one of the six fasting days, one proceeds to the place of the precept master, first bows to the Three Jewels, and next bows to the precept master. Long kneeling with palms joined before the precept master, one first repents of all transgressions, and then receives the precepts. The precept master instructs one to take the threefold refuge in the Three Jewels. After the threefold recitation of refuge is complete, he transmits the five precepts, identical to the śrāmaṇera precepts. Then, presenting the practices listed above, he asks if one is able [to observe them] or not, saying: 'First, non-killing of living beings is an upāsaka precept'—if a woman receives them, one should say 'an upāsikā precept'—'From now until tomorrow dawn, received for one day and night, as all Buddhas do, can you observe it?' The receiver should answer, 'I can.' Up to non-eating past noon, the questions and answers are likewise. A single repetition is sufficient; when finished, one bows and departs. The method of guarding and maintaining them is identical to monastic precepts. All adornments of the body should be removed, and men and women must not sleep in the same room. Such are the eight precepts.