弘明集 8.59

8.59

釋曰。出家之人尊師重法棄俗從道。寧可一概而求。且太子就學父王致敬。漢祖善嘉命之言。以太皇為臣。魏之高貴敬齊王於私室。晉之儲后臣厥父於公庭。引此而判則非疑矣。

The explanation says: A person who has left home honors the teacher and reveres the Dharma, abandoning the secular to follow the Dao; how can they be judged by a single standard? Furthermore, when the Crown Prince took up study, his father the King paid him reverence; the founder of the Han praised words of auspicious counsel and treated the Grand Emperor as his subject; Gaogui of the Wei paid reverence to the Prince of Qi in private quarters; and the Heir Apparent of the Jin treated his own father as a subject in the public court. Citing these examples to judge the matter, there can be no doubt.