Recently I was asked by my manager during a meeting to ask a question to another co-worker by e-mail. I mentioned in the e-mail "Mr. X would like to know (question)...", to which Mr. X complained to me by saying: "I didn't asked you to send the meeting minutes, just to send the question.". I didn't send any meeting minutes, just mentioned in the e-mail who was the person interested in the question, so that the other person would be able to follow up any further question.
Is it impolite to cite the original asker of a question in an e-mail? Why?