佛果圜悟禪師碧巖錄 2.40

2.40

【一九】舉。俱胝和尚。凡有所問（有什麼消息。鈍根阿師）只竪一指（這老漢也要坐斷天下人舌頭。熱則普天普地熱。寒則普天普地寒。換却天下人舌頭）。

The main case introduces Master Juzhi, who was famous for responding to every question by merely raising a single finger, accompanied by interlinear remarks on how this action cuts off all verbal explanation across the world.