法華論疏 2.498

2.498

"Because the Small Vehicle is like milk and the Great Vehicle is like clarified butter. This parable only clarifies that the Great Vehicle is unsurpassable, because the śrāvakas and so forth are also identical to the unsurpassable meaning of the Great Vehicle. As for the śrāvakas being identical: herein it manifests that the nature of the dharmakāya of the Buddhas, the Tathāgatas, is equal and without distinction from the dharmakāya of ordinary beings, śrāvakas, pratyekabuddhas, and so forth."