173
Musnad AhmedDujain Abul-Ghusn, who was from Basrah, said:
I came to Madinah and met Aslam, the freed slave of "Umar bin al-Khattab. I said. Tell me(a report)from "Umar. He said: I cannot, I am afraid that I will add or subtract something. If we said to ‘Umar, Tell us something from the Messenger of Allah (ﷺ), he would say: I am afraid that I may add or subtract a letter. The Messenger of Allah (ﷺ) said: “Whoever tells a lie about me will be in Hell."
Reference: Musnad Ahmad 326
Arabic/English book : Book 2, Hadith 326
Arabic/English book : Book 2, Hadith 326