This scene is from Kiteretsu Daihyakka, page 2 of chapter 5, volume 1.
Here, sorry that I couldn't find any English version of it.
Never had the chance to read this series, even though I already read Doraemon, Ninja Hattori, and that Paman (or was it) as a kid. And I never knew Fujiko F Fujio was consisted of two person.
You want to go to the sea?Do rabbits even swim in the ocean?Eh?Rabbits are all in the same boat-nari! Verbal tic of Korosuke from Kiteretsu Daihyakka.