六祖大師法寶壇經 1.25

1.25

"Having written the verse, Xiu returned straight to his room, and no one knew of it. Xiu reflected again: 'If the Fifth Patriarch sees the verse tomorrow and is pleased, then I have affinity with the Dharma; if he says it is unworthy, it is of myself that I am deluded, my past karmic hindrances being heavy, and I ought not receive the Dharma.' The mind of the holy one being hard to fathom, he pondered in his room, restless whether sitting or lying down, right through until the fifth watch. The Patriarch already knew that Shenxiu had not entered the gate and had not seen his svabhāva.