三彌勒經疏 1.21

1.21

問：更說時說一句耶、說多門？答：說一句，而耳根得自在故，聞一句而即解無量義，廣如《報恩經》。

Question: When it was spoken again, did he speak a single phrase or speak multiple gates? Answer: He spoke a single phrase; and because the ear faculty had attained mastery, upon hearing a single phrase he immediately understood immeasurable meanings, as extensively explained in the Sūtra on Repaying Kindness.