成唯識論述記 6.476

6.476

述曰：《百法》等說癡居慢後，顯通利、鈍，遍上下故。此明不善根，故在慢上。下長行釋，釋中有三：第一辨煩惱得名，解頌上二字；第二出體、業，釋頌謂以下文；第三諸門廣辨，明此六義。

The Commentary states: The Śatadharma and other texts state that delusion is placed after conceit to show that it pervades both sharp and dull [defilements] and extends everywhere above and below. Here, to clarify the unwholesome roots, it is placed before conceit. Below, the prose explains it; within the explanation there are three parts: first, distinguishing the defilements' deriving of their name, explaining the first two words of the verse; second, identifying their substance and activity, explaining the text below 'what are'; third, broadly distinguishing through various gates, explaining the meaning of these six.