SB 10.26.14
kva sapta-hayano balah
kva mahadri-vidharanam
tato no jayate sanka
vraja-natha tavatmaje
Translation:
On the one hand this boy is only seven years old, and on the other we see that He has lifted the great hill Govardhana. Therefore, O King of Vraja, a doubt about your son arises within us.