楞严经
The Buddha said, “Very good, Ananda, you should all know that all living beings are continually born and continually die, simply because they do not know the everlasting true mind, the bright substance of the pure nature. Instead they engage in false thinking. It has been so since time without beginning. Their thoughts are not true, and so the wheel keeps turning.”
Now you wish to investigate the unsurpassed Bodha and actually discover your nature. You should answer my questions with a straightforward mind, because that is exactly the way the Tathagatas of the ten directions escaped birth and death. Their minds were all straight-forward, and since their minds and words were consistently that way, from the beginning, through the intermediate stages to the end, they were never in the least evasive.。
– SHURANGAMA SUTRA/ Translated from Chinese by The Buddhist Text Translation Society, USA
Source / Reference:
Shurangama Sutra (buddhism.org)