CC Ādi 14.8

dekhiyā doṅhāra citte janmila vismaya
kāra pada-cihna ghare, nā pāya niścaya
Word for word: 
dekhiyā — seeing all these marks; doṅhāra — of the parents, Śacīmātā and Jagannātha Miśra; citte — in their hearts; janmila — there was; vismaya — wonder; kāra — whose; pada-cihna — footprints; ghare — at home; — does not; pāya — get; niścaya — certainty.
Translation: 
Seeing all these marks, neither His father nor His mother could understand whose footprints they were. Thus struck with wonder, they could not understand how those marks could be possible in their home.