維摩經略疏垂裕記 1.168

1.168

二、「經前」下，益分現未。經前是別序，在正說前，為發起故。經後序是通序，臨滅付囑故。

Second, from "Before the sūtra..." below, the benefit is divided into present and future. Before the sūtra is the distinct preface: it precedes the main discourse in order to initiate it. The preface after the sūtra is the common preface: it is due to the entrustment upon nearing extinction.