When the prophet disclosed a hadith to some of his wives, then one of them spread it, and God revealed it to him, he recognized part of it and denied part. So when he informed her, she said, "Who informed you of this?" He said, "I was informed by the Knowledgeable, the Ever-aware."
Translation endnotes
[66:3] The word hadith (word, utterance) occurs twice in the Quran in connection with Muhammed. One is here; the other is at 33:53. Here the sharing or reporting of the hadith heard from Muhammed is criticized and in verse 33:53, listening to the hadith of Muhammed is criticized. Knowing that polytheists would create other authorities besides His word and call them hadith, sunna and ijma, God convicted those words. See 33:38; 45:6.