Musnad Ahmad 3:40

Abdullah narrated to us, Ubaydullah ibn Umar al-Qawariri narrated to us, Hammad ibn Zayd narrated to us, Yahya ibn Sa’id narrated to us, Abu Umamah ibn Sahl ibn Hunayf narrated to us, who said: I was with Uthman in the house while he was besieged. He said: "We used to enter an entrance..." then he mentioned the hadith like it. And he said: "I have heard the Messenger of Allah, peace and blessings of Allah be upon him, say..." then he mentioned the hadith like it or similar to it.