金光明最勝王經疏 2.306

2.306

贊曰：品第四大段聞已散席。但言四佛不現、妙幢還室，不論餘眾者，有二解：一舉其上首影顯於餘故。二舊本云是本會中唯釋迦在，一唯四如來及妙幢還，餘者猶在。何以故？說未周故。下說三身不更集眾，如何得云「虛空藏在大眾中從座而起」。問：云何妙幢菩薩獨還，說未了故。答：為欲發起懺悔行故。若不歸家寢睡，如何夢見金鼓？問：何不直請，要待夢耶？蓋行之難，故夢為先兆。又機緣爾故。

Commentary: The fourth major section of the chapter is the dispersal of the assembly after hearing [the teaching]. Merely mentioning that the four Buddhas disappeared and Ruciraketu returned to his chamber, without discussing the rest of the assembly, has two explanations: First, by highlighting the leaders, it implicitly indicates the rest. Second, the old text says that in this original assembly only Śākyamuni remained; only the four tathāgatas and Ruciraketu returned, while the rest were still present. Why? Because the exposition was not yet complete. Below, when preaching on the three bodies, the assembly is not re-gathered; how could it say, "Ākāśagarbha arose from his seat in the midst of the great assembly"? Question: Why did Ruciraketu Bodhisattva return alone, given that the preaching was not yet finished? Answer: In order to initiate the practice of repentance. If he did not return home to sleep, how could he dream of the golden drum? Question: Why did he not request it directly, rather than waiting for a dream? Because the practice is difficult, the dream serves as an omen. Furthermore, the conditions and capacities were such.