唯識二十論述記 1.236

1.236

論：頌曰：識從自種生，似境相而轉，為成內外處，佛說彼為十。

The treatise: The verse says:
Consciousness arises from its own seed
And operates resembling the appearance of an object.
In order to establish the internal and external bases,
The Buddha taught them to be ten.