俱舍論記 19.66

19.66

「即於所執至斷常邊故」者，釋斷、常明邊執見。即於所執我、我所事，或執為斷、或執為常，乖於中道非斷、常理。以妄執取斷、常邊，故名邊執見。緣邊起執，邊之執故，名為邊執，依主釋也。邊執即見，名邊執見，持業釋也。

Regarding "Right in the grasped... extremes of annihilation and permanence": Explaining annihilation and permanence, it clarifies the view of grasping at extremes. Right with respect to the grasped entity of self and what belongs to a self, one grasps it either as annihilated or as permanent, deviating from the principle of the Middle Way which is free from annihilation and permanence. Because one falsely grasps the extremes of annihilation and permanence, it is called the view of grasping at extremes (antagrāhadṛṣṭi). Arising grasping with respect to an extreme—grasping of an extreme—it is called 'extreme-grasping', a tatpuruṣa compound. The extreme-grasping is itself the view, hence called 'the view of grasping at extremes', a karmadhāraya compound.