Liji "Liyun (The conveyance of rite" / Ceremonial usages; their origins, development, and intention)" 23. quote: "何謂四靈？麟鳳龜龍，謂之四靈。" translation based on James Legge's: "What were the four numinous creatures? They were the lin, the feng, the tortoise, and the dragon."
