大方廣佛華嚴經隨疏演義鈔 17.17

17.17

疏「三以文從義科」，謂據現文但有其四，四位大問故。就第二分中，有差別平等二義，故分為五周因果。

Regarding the Commentary's statement, 'Third, the division following the meaning based on the text': This means that according to the extant text there are only four, because of the major questions of the four stages. Within the second section, there are the two meanings of distinction and equality; hence it is divided into five cycles of cause and effect.