華嚴經探玄記 1.28

1.28

第七一部攝者，於十二部中，或唯約方廣一部所攝，對法論說一切有情利益安樂所依處故，宣說廣大甚深法故，名為方廣。又《瑜伽》說聲聞藏中無方廣故，或此經題目已顯現故。

Seventh, being subsumed under one division: among the twelve divisions, it is perhaps subsumed solely under the one division of vaipulya, because the Abhidharma-samuccaya states that it is the foundation for the benefit, ease, and joy of all sentient beings, and because it proclaims broad, great, and profoundly deep teachings, it is called vaipulya. Furthermore, the Yogācārabhūmi states that there is no vaipulya in the śrāvaka pitaka, or because the title of this sūtra has already made it manifest.