A Non-Buddhist said to the Buddha,

“I do not ask for words; I do not ask for silence.”

Buddha just sat quietly. The Non-Buddhist said admiringly, “The compassion of the World-Honored One has opened the clouds of my illusion, and has enabled me to enter on the Way.” Making his salutations, he departed. Ananda then asked the Buddha, “What was it this Non-Buddhist realised, that he so praised you?” The World-Honored One replied, “A high-class horse moves even at the shadow of the whip.”

Mumonkan, Case XXXII