四明十義書 1.174

1.174

上人堅執云：唯觀識性具三千法。則三千之外更無一法，豈得別存一事境在心外，而待識陰理顯方遍融耶？須知此說全不得初心修觀之意也。何者？既不許觀外色等法，恐心外向，唯觀內心理具之義，則須若內若外一時遍觀，方名觀於性具三千。

You obstinately maintain: 'One only contemplates the nature of consciousness as inherently possessing the three thousand dharmas.' Then, outside the three thousand there is not a single dharma; how could an external phenomenal object exist separately outside the mind, waiting for the principle of the consciousness-aggregate to become manifest before it is pervasively integrated? You must realise that this statement completely misses the intention of cultivating contemplation in the initial mind. Why is that? Since you do not permit contemplation of external forms and other dharmas for fear of the mind turning outward, and only contemplate the principle inherently present within the internal mind, then one would have to contemplate both the internal and the external all at once pervasively before it could be called contemplating the inherently possessed three thousand.