摩訶止觀 3.212

3.212

第六云：「凡夫如乳；須陀洹如酪；斯陀含如生酥；阿那含如熟酥；阿羅漢、辟支佛、佛如醍醐。」《大論》云：「聲聞經中稱阿羅漢名為佛地。」故三人同是醍醐。此譬豈非釋三藏中五味？漸圓意，類此得成。

Chapter Six says: "An ordinary person is like milk; a srotaāpanna is like curd; a sakṛdāgāmin is like fresh butter; an anāgāmin is like clarified butter; an arhat, a pratyekabuddha, and a Buddha are like ghee." The Mahāprajñāpāramitopadeśa says: "In the śrāvaka sūtras, an arhat is termed the Buddha-ground." Therefore, the three persons are equally ghee. Does this analogy not explain the five flavors in the Tripiṭaka? The meaning of the gradual and perfect is established in accordance with this.