Musnad Abu Ya'la al-Mawsili 2:121

Sufyan ibn Waki' ibn al-Jarrah narrated to us, my father narrated to us, from al-Dujayn, from Aslam, the freed slave of Umar, who said: I heard Umar saying: I heard the Messenger of Allah (peace and blessings of Allah be upon him) saying: "Whoever lies about me intentionally, let him take his seat in the Fire."