華嚴經探玄記 1.81

1.81

三喻名者，依《涅槃經》及《觀佛三昧經》名，此經為《雜華經》，以萬行交飾緣起集成，從喻標名，猶雜華耳。

Third, the metaphorical name: according to the names in the Nirvāṇa Sūtra and the Guanfo sanmei jing, this sūtra is called the Miscellaneous Flowers Sūtra (Zahua jing), because the myriads of practices interlace and adorn it, assembled through conditioned arising; designating the title from the metaphor, it is just like miscellaneous flowers.