注大乘入楞伽經 2.66

2.66

言：最細微塵名兔毫塵，七兔毫塵成一羊毛頭塵，七羊毛頭塵成一隙中塵，七隙中塵成一蟣，七蟣成一虱，七虱成一穬麥，七穬麥成一指，一十二指成一搩，兩搩成一肘，四肘為一弓，五百弓名一拘樓舍，十拘樓舍名一由旬。三千大千世界為一化佛剎。謂此等諸法，皆積微成體。何故不問各具幾塵所成？

This means: The finest subtle dust particle is called a hare's hair dust particle; seven hare's hair dust particles make one sheep's hair-tip dust particle; seven sheep's hair-tip dust particles make one dust particle in a sunbeam; seven dust particles in a sunbeam make one nit; seven nits make one louse; seven lice make one barley grain; seven barley grains make one finger-breadth; twelve finger-breadths make one span; two spans make one cubit; four cubits make one bow; five hundred bows are called one krośa; ten krośas are called one yojana. A trichiliocosm is one transformation-buddha land. This means that all such dharmas form an entity through the accumulation of subtle particles. Why did you not ask how many particles each is composed of?