俱舍論記 24.90

24.90

「即此所說至最為勝故」者，釋第五、第六、句。此定從喻為名、故名金剛喻定。如世金剛能破一切、此定亦爾、能破一切惑。故《正理》云「此定堅銳，喻若金剛。」

[The phrase] "This aforementioned […] because it is the most supreme" explains the fifth and sixth lines. This samādhi takes its name from a metaphor; hence it is called the diamond-like samādhi (vajropamasamādhi). Just as a worldly diamond can destroy everything, so too can this samādhi destroy all afflictions. Therefore the Nyāyānusāra states: "This samādhi is firm and sharp, like a diamond in metaphor."