俱舍論記 2.7

2.7

「障礙有對至或二相礙」者，據積集色更相障礙。或二相礙，謂手、石相礙。據顯且言手石，論礙實通十種。

"Obstructive resistance ... or mutual resistance between two" refers to aggregated matter mutually obstructing one another. "Or mutual resistance between two" refers to a hand and a stone resisting each other. Pointing to the evident, it speaks provisionally of hand and stone; in discussing resistance, it actually extends to the ten [physical kinds].