俱舍論疏 30.133

30.133

論「諸心品類至唯一切智知」，明心次第微細，推佛能知，兼引頌證。孔雀毛羽色類差別之因，唯佛能知。

On the Śāstra's statement: "The categories of various thoughts [...] only the Omniscient One knows": This clarifies that the sequence of thoughts is subtle and fine, attributing knowledge of it to the Buddha alone, and citing a verse as proof. The cause of the distinct categories of colors in the feathers of a peacock can only be known by the Buddha.