辯正論 6.42

6.42

開士曰。汝化胡經言。喜欲從聃。聃曰。若有至心隨我去者。當斬汝父母妻子七人頭者。乃可去耳。喜乃至心便自斬父母七人。將頭到聃前。便成七猪頭。夫順天地之道者行也。不傷和氣者孝也。丁蘭感通於朽木。董永孝致於天女。禽獸猶有母。子而知親。況聃喜行道於天下。斬其父母何名孝乎。戮其妻子豈謂慈乎。

The Bodhisattva said: Your Huahu jing says: '[Yin] Xi wished to follow Dan [Laozi]. Dan said: "If you are of utmost sincerity and wish to follow me, you must sever the heads of your seven family members—parents, wife, and children—and only then may you depart." Xi, in utmost sincerity, then severed the heads of his parents and family, seven persons in all. When he brought the heads before Dan, they transformed into seven pig heads.' Now, conforming to the Dao of heaven and earth is practice; not harming harmonious qi is filial piety. Ding Lan was moved to communicate through decayed wood; Dong Yong's filial piety summoned a heavenly maiden. Even birds and beasts have mothers and offspring that know affection. How much more so when Dan and Xi were practicing the Way in the world: how could severing one's parents' heads be called filial? How could slaying one's wife and children be considered compassion?