成唯識論演祕 3.497

3.497

若無之言，恐有執因正即是果。夫因果者，不即離故，為簡其濫，故論置之。

If the word ["resembles"] were absent, it is feared someone might cling to the cause being precisely the fruit itself. Now, cause and fruit are neither identical nor separate; in order to preclude this confusion, the Treatise formulated it thus.