The background story of this Koan
A philosopher asked Buddha: "Without words, without the wordless, will you tell me truth?"
The Buddha kept silence.
The philosopher bowed and thanked the Buddha, saying: "With your loving kindness I have cleared away my delusions and entered the true path."
After the philosopher had gone, Ananda asked the Buddha what the philosopher had attained.
The Buddha replied: "A good horse runs even at the shadow of the whip."
That's some kind of Buddhist propaganda-Koan from 10th century China, when Buddhists were competing with Neo-Confucian Scholars for government jobs.
One of these competitors asked a complicated philosophical question. The Buddha doesn't bother to answer but goes into meditation.
Instead of being disappointed, the scholar is full of praise for the Buddha's response.
Afterwards, in a kind of "politeness" the Buddha calls his visitor a "good horse", who only needed a slight hint to understand.
This kind of patriarchal comment, is another offence to Confucians.
The original Chinese Goang
The World Honored One:
Because one outside the Way asked, "I do not ask you to be with words: I do not ask you to be without words."
The World Honored One occupied the seat.
The One Outside the Way praised and exclaimed saying, “The World Honored One, the Great Merciful One, the Great Pitying One, opens my clouds of confusion and by His decree I am able to enter.” He consequently made his proprieties and then departed.
Ananda sought to ask the Buddha, "What actually did the one outside the Way have as evidence to exclaim his praise and then depart?"
World Honored said, "He is just like a world class horse. Seeing the shadow of the whip, yet it goes.”
Traditional Commentaries and .... Poems (Gata)
Ananda was the disciple of the Buddha. Even so, his opinion did not surpass that of outsiders.
I want to ask you monks: How much difference is there between disciples and outsiders?
Ananda indeed was a disciple of the Buddha, but it was as if he was not as good as the one outside the Way at seeing liberation.
Just say, how many times did the one outside the Way together with the disciple of the Buddha mutually depart?