妙法蓮華經玄贊 1.69

1.69

准處准機，應聲聞而為化佛。准文准器，教菩薩而即報身。感者根品不同，應現故通報、化。王城、鷲嶺，劫盡火燒，鶖子聞經，即化佛也。我土安隱，壽量長遠，文殊在中，即報身也。應化非真佛亦非說法者，推功歸本即法身也。所以《稱讚大乘功德經》住法界藏，明法身說。《佛地經》等住寶華王十八圓滿，乃報身說。此經王城跡即化佛說。據理而言，實通三佛，應物現身非定一故。《楞伽經》中說三佛身說法各別，皆說法故。由此劬師羅長者，覩三尺以發心，五百婆羅門見灰身而起信，無邊身之菩薩窮上界而有餘，住小聖之凡夫觀丈六而無盡。今顯主尊教隨定勝，初標教主令生喜心。

Judging by the place and the capacities, responding to the śrāvakas, he is an emanation buddha (nirmāṇakāya). Judging by the text and the spiritual capacity, teaching the bodhisattvas, he is the reward body (saṃbhogakāya). Because the spiritual faculties of those who respond vary, the response and manifestation accordingly encompass both reward and emanation. Rājagṛha and Vulture Peak, incinerated when the kalpa ends, with Śāriputra hearing the sūtra—this is the emanation buddha. 'My land is peaceful and secure,' his lifespan long and enduring, with Mañjuśrī in their midst—this is the reward body. The responsive emanation is not the true Buddha, nor is it the expounder of the Dharma; attributing the achievement to the source, it is the Dharma body (dharmakāya). Hence the Praising the Merits of the Great Vehicle Sūtra abides in the storehouse of the dharma-realm, explaining the exposition of the Dharma body. The Buddhabhūmi-sūtra and others abide in the eighteen perfections of the jewel flower king, which is the exposition of the reward body. In this sūtra, the traces at Rājagṛha are the exposition of the emanation buddha. In terms of ultimate principle, it genuinely encompasses all three buddhas, for manifesting a body in response to beings is not fixed to only one. In the Laṅkāvatāra-sūtra it is taught that the expositions of the three buddha-bodies are each distinct, yet all expound the Dharma. Therefore, the elder Ghoṣila aroused the aspiration upon seeing him at three spans tall; five hundred brahmins gave rise to faith upon seeing his body reduced to ashes; the Bodhisattva of Boundless Body could not fathom him though exhausting the upper realms; while ordinary beings abiding in the lesser saintly attainments viewed his sixteen-foot body without end. Now, to make manifest that the Lord is venerable and the teaching supreme according to capacity, the Lord of the Teaching is indicated at the beginning to cause the arising of joyful minds.