na te tad-uktam jagrhur
na ghateteti tasya tat
Translation by His Divine Grace A. C. Bhaktivedanta Swami Srila Prabhupada:
Because of intense paternal affection, the cowherd men, headed by Nanda, could not believe that Krsna could have uprooted the trees in such a wonderful way. Therefore they could not put their faith in the words of the boys. Some of the men, however, were in doubt. “Since Krsna was predicted to equal Narayana,” they thought, “it might be that He could have done it.”
Purport by His Divine Grace A. C. Bhaktivedanta Swami Srila Prabhupada:
One view was that it was impossible for a small boy like this to have done such a thing as pulling down the trees. But there were doubts because Krsna had been predicted to equal Narayana. Therefore the cowherd men were in a dilemma.