宏智禪師廣錄 3.53

3.53

[Hongzhi] cited: Grand Master Lu Gen asked Nanquan, "In this disciple's home there is a slab of stone; at times I sit on it, at times I lie on it. If I wish to chisel it into a Buddha, may I do so?" Nanquan said, "You may." Lu said, "May I not do so?" Nanquan said, "You may not." Yunyan said, "If one sits on it, it is a Buddha; if one does not sit on it, it is not a Buddha." Dongshan said, "If one does not sit on it, it is a Buddha; if one sits on it, it is not a Buddha." The Master [Hongzhi] said, "Turning function to approach position; turning position to approach function—one must give credit to the father and son of Mount Dong. And tell me, what was Nanquan's meaning? Truly, a needle or awl cannot pierce it."