SB 10.12.41
sri-rajovaca
brahman kalantara-krtam
tat-kalinam katham bhavet
yat kaumare hari-krtam
jaguh paugandake ’rbhakah
Translation by His Divine Grace A. C. Bhaktivedanta Swami Srila Prabhupada:
Maharaja Pariksit inquired: O great sage, how could things done in the past have been described as being done at the present? Lord Sri Krsna performed this pastime of killing Aghasura during His kaumara age. How then, during His pauganda age, could the boys have described this incident as having happened recently?