Musnad Ahmad 31:354

Abu Ubaydah narrated to us, Hammam ibn Yahya narrated to us, from Zayd ibn Aslam, from Ata ibn Yasar, from Abu Sa’id, that the Prophet, peace and blessings of Allah be upon him, said: "Do not write anything from me except the Quran. Whoever has written anything from me, let him erase it." And he said: "Narrate from me, and whoever lies about me intentionally, let him take his seat in the Fire."