大方廣佛華嚴經隨疏演義鈔 48.20

48.20

疏「別則唯約受用土」下，釋上亦別之言。於中三：初總明、二引論成立二因之義、三示二因之體。今初，因緣親生曰流，增上緣踈為引。

Regarding the commentary's statement, "Specifically, it pertains solely to the enjoyment land": this explains the above statement that it is "also specific." Within this, there are three parts: first, a general explanation; second, citing the śāstra to establish the meaning of the two causes; third, indicating the essence of the two causes. Now, regarding the first: direct generation through the primary cause is called "flowing"; secondary generation through the sovereign condition is called "drawing."