Musannaf Ibn Abi Shayba 3:4567

Abu Bakr narrated to us, he said: Yazid bin Harun narrated to us, from Sulaiman al-Taymi, from a man, from Abu al-Muhazzam, from Abu Hurairah, he said: He descended upon him for ten years, and I did not see him perform Qunut in his Witr.