妙法蓮華經玄義 9.25

9.25

復約五味，分別少多：乳教兩種四門；酪教一種四門；生蘇四種四門；熟蘇三種四門；此經一種四門（云云）。

Furthermore, distinguishing their greater or lesser distribution according to the five flavors: the teaching of milk has two kinds of four gates; the teaching of curds has one kind of four gates; raw curd has four kinds of four gates; cooked curd has three kinds of four gates; this sūtra has one kind of four gates (and so forth).