觀無量壽佛經疏 4.16

4.16

又一切行者但能依此經，深信行者，必不誤眾生也。何以故？佛是滿足大悲人故，實語故。除佛已還，智行未滿，在其學地，由有正習二障未除，果願未圓。此等凡聖，縱使測量諸佛教意，未能決了，雖有平章，要須請佛證為定也。若稱佛意，即印可言如是如是，若不可佛意者，即言汝等所說是義不如是。不印者，即同無記無利無益之語。佛印可者，即隨順佛之正教。若佛所有言說即是正教、正義、正行、正解、正業、正智，若多若少，眾不問菩薩人天等定其是非也。若佛所說即是了教，菩薩等說盡名不了教也。應知。是故今時仰勸一切有緣往生人等，唯可深信佛語專注奉行，不可信用菩薩等不相應教以為疑礙，抱惑自迷廢失往生之大益也。

Furthermore, if all practitioners can only rely on this sūtra and practice with deep faith, it will surely not mislead sentient beings. Why is this? Because the Buddha is a person whose great compassion is fulfilled, and because he speaks truthful words. Below the Buddha, wisdom and practice are not yet fulfilled; being on the stage of learning, because the two obstacles of active defilements and residual habit-energy have not yet been eliminated, their fruitional vows are not yet complete. Even if these ordinary people and sages estimate the meaning of the various Buddhas' teachings, they cannot be definitively certain; though they hold discussions, they must request the Buddha's verification for it to be settled. If it accords with the Buddha's intent, he gives his seal of approval, saying, 'Thus it is, thus it is.' If it does not accord with the Buddha's intent, he says, 'The meaning of what you have stated is not so.' What is not sealed by the Buddha is equivalent to unrecorded words of no profit and no benefit. What is sealed by the Buddha accords with the Buddha's correct teaching. Whatever the Buddha speaks is the correct teaching, correct meaning, correct practice, correct understanding, correct karma, and correct wisdom; whether more or less, one never questions bodhisattvas, humans, devas, or others to decide its right or wrong. What the Buddha states is the definitive teaching, whereas what bodhisattvas and others state is all called non-definitive teaching. One should know this. Therefore, at present, I reverently urge all persons with conditions for rebirth only to have deep faith in the Buddha's words and single-mindedly uphold them in practice, and not to place trust in the discordant teachings of bodhisattvas and others so as to generate doubt and obstruction, harbouring confusion and misleading themselves, and thereby forfeiting the great benefit of rebirth.