大方廣佛華嚴經隨疏演義鈔 70.29

70.29

疏「三聚但是約時定不定故」者，釋上論第四節，依定不定時是三聚林故。

Regarding the commentary's statement, "The three groups are merely determinate and indeterminate in terms of time": this explains the fourth clause of the treatise above, which states that being based on determinate and indeterminate times is the thicket of the three groups.