大方廣佛華嚴經隨疏演義鈔 34.99

34.99

疏「以是至德行本」者，即外典意。故《孝經》「夫子語曾子曰：『先王有至德要道，民用和睦，上下無怨。汝知之乎？』」注云「至德者，孝悌也。要道者，體樂也。故上至天子下至庶人，皆當行孝無始終也。」言行本者，俗典以孝為百行之本。下引佛教證。菩薩戒亦云：孝養師僧父母。孝名為戒，亦名制止。

Regarding the Commentary's phrase "it is the root of the utmost virtue and conduct": this is the meaning found in external classical texts. Thus the Classic of Filial Piety states: "The Master addressed Zengzi, saying: 'The ancient kings possessed an utmost virtue and essential Way, through which the common people lived in harmony and high and low were without resentment. Do you know it?'" The commentary notes: "'Utmost virtue' is filial piety and fraternal respect. 'Essential Way' is embodying music. Thus, from the Son of Heaven down to the commoners, all must practice filial piety from beginning to end." Regarding "root of conduct": secular texts take filial piety as the root of all hundred conducts. Below, Buddhist teachings are cited in proof. The Bodhisattva Precepts also state: "Filially support teachers, the monastic Saṅgha, and parents. Filial piety is called the precepts, and is also called restraint."