令正法久住 護生 隨方毘尼 大唐西域記 三淨肉 不食肉戒 僧道序次 僧俗同罰 To prolong the righteous dharma To protect life To adjust the vinaya to the adaptation of environment The great Tang dynasty record of the western regions Three types of pure meat The precept of abstaining from eating meat The sequential arrangement between the Buddhist Sangha members and the Taoist priests Common punishment system for Sangha members and worldly people