佛祖統紀 37.13

37.13

Sixteenth year. An imperial decree ordered that the imperial physicians must not use living creatures as medicine. For the sacrificial animals of the suburban temples, flour was substituted for all of them; the ancestral temples began to use vegetables and fruits for their sacrificial offerings. (Quan is pronounced quan; an ox of uniform color. The Liji speaks of 'sacrificial animals of uniform color' in sacrifices.)