摩訶止觀 3.213

3.213

三十二云：「眾生如雜血乳；須陀洹、斯陀含如淨乳；阿那含如酪；阿羅漢如生酥；辟支佛、菩薩如熟酥；佛如醍醐。」此譬豈不釋通教中五味？支佛侵習，小勝聲聞，故與菩薩同為熟酥。佛正習盡，名為醍醐。借此類通教當分，漸圓義顯。

Chapter Thirty-Two says: "Sentient beings are like milk mixed with blood; srotaāpannas and sakṛdāgāmins are like pure milk; anāgāmins are like curd; arhats are like fresh butter; pratyekabuddhas and bodhisattvas are like clarified butter; Buddhas are like ghee." Does this analogy not explain the five flavors in the shared teaching? Pratyekabuddhas erode habit-energies, being slightly superior to śrāvakas; therefore they are clarified butter together with bodhisattvas. The Buddha having exhausted both primary [defilements] and habit-energies is termed ghee. Borrowing this to analogize the shared teaching within its own division, the meaning of gradual and perfect becomes evident.