Socrates does not say this about the written word. Plato has Socrates say it about writing in the beginning sections of the Phaedrus, but it is not Socrates opinion nor the final conclusion he arrives at.

And yes yes you can pull up the quote or ask your AI, but they will be wrong. The quote is from Socrates reciting a "myth", as is pretty typical in a middle late dialogue like this.

But here, alas we can recognize the utter absurdity, that this just points out why writing can be bad, as Socrates does pose. Because you get guys 2000 years in future using you and misquoting you for their dumb cause! No more logos, only endless stochastic doxa. Truly a future of sophists!