Ch: Yaoshan she chenzhongchen; lit. "Yakusan's Shooting of the Great King of the Big Deers." A Zen 禅 (Ch: Chan) dialogue between Yaoshan (Jp: Yakuzan 薬山, 751-834) and a monk, that uses the shooting of a deer king as a metaphor for a spiritual challenge between monks.
The story, Case 81 of the Biyanlu (Jp: Hekiganroku 碧厳録; 1300), begins with an unidentified monk asking Yaoshan, "How can one shoot the Great King of the Big Deers?" Yaoshan replies, "Watch the arrow," while pretending to draw a bow. The monk falls to the floor, and, when Yaoshan pronounces him "dead," he runs away.
Kano Sanraku's 狩野山楽 (1590-1651) painting at Zōgein 雑華院, Kyoto, showing Yaoshan standing, an arrow, the monk fallen on the floor, and a deer, is a typical visualization of the story.