法華玄義釋籤 14.9

14.9

三聲聞益，中二：先明修因意，次「若持戒」下正釋。初中言「犛牛」者，由愛尾故，人貪其尾，乃害其身。《說文》云：「西夷長尾牛也。」有作猫字，是人間捕鼠者，非此中義。又有作猫字，未知所從，正應作「犛」字。

Third, the śrāvaka benefits, which have two parts: first, explaining the intention of cultivating the cause; next, from “if one upholds the precepts” onward, the main explanation. In the first part, the mention of the “yak” is because, out of love for its tail, humans covet its tail and consequently harm its body. The Shuowen says: “A long-tailed ox of the western barbarians.” Some texts have the character māo (cat), which is the animal that catches rats in the human world and is not the meaning here. Some also write it as máo, but it is not known where this derives from; the correct character should be lí (yak).