Help Wanted: Finding the original Chinese characters

I'm looking for the original Chinese that was translated into this:

p.132, Zen and Zen Classics, Vol.2

One day Yunmen ascended to the rostrum and said, "Vasubandhu happened to transform himself into a staff of chestnut wood, and, striking the earth once, all the innumerable Buddhas were released from their entangling words." So saying he descended from the pulpit.

Thoughts? Suggestions? Should I try to search that database (somewhere) I recall had texts in Chinese for the character(s) for Vasubandhu?

Submitted May 13, 2019 at 07:29PM by ewk http://bit.ly/2HjqCI7