菩薩戒本疏 2.125

2.125

若佛子！常應二時頭陀：冬夏坐禪、結夏安居。常用楊枝、澡豆，三衣、瓶、鉢、坐具、錫杖、香爐、漉水囊、手巾、刀子、火燧、鑷子、繩床、經、律、佛像、菩薩形像。而菩薩行頭陀時及遊方時，行來百里、千里，此十八種物常隨其身。頭陀者，從正月十五日至三月十五日、八月十五日至十月十五日，是二時中，此十八種物常隨其身，如鳥二翼。若布薩日，新學菩薩半月半月布薩，誦十重、四十八輕戒。若謂戒時，當於諸佛菩薩形像前誦，一人布薩即一人誦，若二人、三人乃至百千人亦一人誦。誦者高座，聽者下座，各各被九條、七條、五條袈裟。結夏安居時，亦應一一如法。若行頭陀時，莫入難處。若惡國界、若惡國王，土地高下、草木深邃，師子、虎、狼、水、火、風難，及以劫賊、道路、毒蛇，一切難處悉不得入。頭陀行道，乃至夏坐安居時，是諸難處，皆不得入。若故入者，犯輕垢罪。

"If, sons of the Buddha, one should always undertake dhūta during two seasons: seated meditation in winter and summer, and the summer retreat. One should always use tooth-wood and cleansing powder, the three robes, a bottle, a bowl, a sitting mat, a pewter staff, an incense burner, a water filter bag, a towel, a knife, a fire-striker, tweezers, a rope bed, sūtras, vinaya, an image of the Buddha, and an image of a bodhisattva. When a bodhisattva practices dhūta and travels about, journeying back and forth for a hundred miles or a thousand miles, these eighteen kinds of items should always accompany the body. As for dhūta, from the fifteenth day of the first month to the fifteenth day of the third month, and from the fifteenth day of the eighth month to the fifteenth day of the tenth month, during these two periods these eighteen kinds of items should always accompany the body, like the two wings of a bird. If it is a poṣadha day, newly training bodhisattvas should hold poṣadha every half-month, reciting the ten major and forty-eight light precepts. When reciting the precepts, one should recite them before the images of the Buddhas and bodhisattvas; if one person holds poṣadha, then one person recites, and if two people, three people, or even hundreds of thousands of people, still one person recites. The reciter sits on a high seat, and the listeners sit on lower seats, each wearing a nine-strip, seven-strip, or five-strip kāṣāya. When observing the summer retreat, each and every detail should also conform to the Dharma. When practicing dhūta, do not enter perilous places. Whether it be an evil country, an evil king, rough terrain, deep thickets, perils of lions, tigers, wolves, water, fire, or wind, as well as bandits, perilous roads, or venomous snakes—one must not enter any perilous place. While practicing dhūta on the path, and even during the summer retreat, one must not enter any of these perilous places. If one intentionally enters them, one commits a duṣkṛta offense."