諸經要集 2.41

2.41

述曰。時有道俗。薄學淺識。謂智過人。設欲修學。不專內典。唯慕俗書外道典籍。故涅槃經佛言。我滅度後。有聲聞弟子。愚癡破戒。喜生鬪爭。捨十二部經。讀誦種種外道典籍。文頌手筆。受畜一切。不淨之物言是佛聽。如是之人。以好栴檀貿易凡木。以金易鍮石。以銀易白鑞。以絹易𣯫褐。以甘露易於惡毒汁。

The commentary says: At times there are monastics and laity of slight learning and shallow understanding who deem their wisdom superior to others. Even if they wish to cultivate and study, they do not focus on the internal scriptures, but only admire worldly books and non-Buddhist treatises. Thus in the Nirvāṇa-sūtra the Buddha said: "After my parinirvāṇa, there will be śrāvaka disciples who are foolish and break the precepts, fond of giving rise to quarrels, who will abandon the twelve divisions of scriptures to read and recite various non-Buddhist treatises, literary verses, and calligraphy, accepting and hoarding all kinds of impure things, claiming this is permitted by the Buddha. Such persons trade fine sandalwood for ordinary wood, exchange gold for brass, silver for pewter, fine silk for coarse felt and hemp, and exchange amṛta for vile poison."