What I said about Peter goes for you, too.

我说的关于彼得的话也适用于你。

《牛津词典》

I apologize for what I said about you.

我为我所说的关于你的道歉。

youdao

Take back what you said about Jeremy!

收回你说的有关杰里米的话！

《柯林斯英汉双解大词典》

What is said about someone else can also be said about you.

VOA: special.2010.05.09

Another example is when you're talking about what's been said by somebody else,

另一个例子是当你在谈论其他人曾说过的事情时，

That's what课堂 - SpeakingMax英语口语达人

For example,if I said, "What do most people believe about what happens to you after you're dead?"

比如，“人们通常认为,人死后会是何种情形“

耶鲁公开课 - 新约课程节选

Well, thank you -- thank you very much for that, and thank you for what you said about the relationship between our two countries, which I believe is incredibly strong, but as you say, I think can get stronger in the years ahead.

WHITEHOUSE: President Obama & Prime Minister Cameron at G20 Summit

" One of his agents said, "What you said about Bubba being Bubba, that's perfect.

WSJ: Bubba Watson Takes Manhattan After Winning the Masters

But what you -- what you said, Barack, though, about British and America soldiers fighting together, sometimes dying together, serving together, is absolutely right.

WHITEHOUSE: President Obama and Prime Minister Cameron at the White House | The White House