I would not be surprised if one day we open up our history books to find this written there. If Ukraine can rewrite its school books to say that ancient Ukrainians dug up the Black Sea then our pro-Zionist governments can definitely get away with that kind of revisionism.
What the only source about that I could find is an article saying that the Book that suposedly claimed that, never existed and the quote came from a parody.
It is widely known that post Maidan Ukraine has embarked on a massive campaign of historical falsification and revisionism. There are countless discussions in the Russian media sphere of the garbage that the Kiev regime’s “historians” claim and write in their school history textbooks. Even if this one is just an internet rumor, there are thousands of other no less absurd distortions and lies that they print in the literature that the fascist Kiev regime teaches to Ukrainian children:
https://rossaprimavera.ru/article/65823b10 https://park72.ru/first-ukrainian-front/47775/