俱舍論疏 5.225

5.225

論「生相若無應無生覺」，反難也。心法託境必不自起，生相若無應無生覺。

The Śāstra states: "If the mark of arising did not exist, there would be no cognition of arising." This is the counter-objection. Mental dharmas rely on an object and never arise by themselves; if the mark of arising did not exist, there would be no cognition of arising.