Garudapurana 2.48.22

2.48.22

sarvaṃ vijānāti hi garbhasaṃsthito jātaśca sadyastadidañca vismaret /
yaccintitaṃ garbhasamāgatena vai bālo yuvā vṛddhavayā babhūva //

For situated in the womb, one knows everything, but once born one immediately forgets this. / Whatever was contemplated by me when in the womb, I became a child, a youth, and advanced in age.