Hekiganroku 22 (source : note du Denkoroku, s.v. “what is right, I will verify for you; what is wrong, I will prune away for you” p 422)

Xuefeng pilgrimaged together with Yantou and Qinshan. All in all, he went to Touzi [Monastery, and its abbot Yiqing] three times, and climbed Mount Dong [to see its abbot Liangjie] nine times. Finally he sought instruction from Deshan [Xuanjian], and only then smashed the lacquer bucket. One day he accompanied Yantou and went to visit Qinshan. When they got as far as an inn on Mount Juao, they got snowed in. Yantou spent every day just sleeping, but Xuefeng devoted himself to seated meditation. Yantou shouted at him: “Go get some sleep! Every day [you sit] on that platform, you look exactly like an earth god [image] in some little village. At another time in some later day, you will be an evil spirit who bewitches men and women in people’s homes.” Xuefeng pointed to his breast and said, “I am not yet at peace in here. I don’t dare deceive myself.” Yantou said, “I had thought that you, later on, would go to the top of a solitary peak [feng, a pun on Xuefeng’s name], weave together a grass hut, and widely sow the seeds of the great teaching, but you are still making a statement like this?” Xuefeng

422 said, “I am truly not yet at peace.” Yantou said, “If you are truly like this, take hold of your views and communicate them one by one. What is right, I will verify for you; what is wrong, I will prune away for you.”

Xuefeng, accordingly, recalled, “When I saw Yanguan raise [the kōan] ‘the meaning of form and emptiness’ at a convocation in the dharma hall, I gained an entry.” Yantou said, “For the next thirty years, you are absolutely forbidden to raise this [again].” Xuefeng also recalled, “When I saw Dongshan’s ‘crossing over water’ verse, I gained an entry.” Yantou said, “If that’s it, you’ll never save yourself.” [Xuefeng said] “Later I went to Deshan and asked, ‘When it comes to the matter conveyed in the lineage vehicle up to now, does even this student have a part in it, or not?’ Deshan hit me once and said, ‘What are you talking about?’ At that time I felt as if the bottom of the bucket had dropped out.” Yantou then shouted and said, “Haven’t you heard the saying, ‘What comes in through the gate is not the family treasure’?” Xuefeng said, “Well then, what is right?” Yantou said, “Someday, if you want to widely sow the seeds of the great teaching, let each point flow out from within your own breast for me, covering heaven and covering earth.” Xuefeng, with these words, was greatly awakened. He made prostrations, stood up and cried out repeatedly, “Today I have for the first time attained the way on Mount Juao! Today I have for the first time attained the way on Mount Juao!”