Hadith 17:941
Abu Bakr narrated to us, he said: Muhammad ibn Bishr narrated to us, he said: Zakariya narrated to us, from Khalid ibn Salamah, from Muslim, the freed slave of Khalid ibn Arfatah, that Khalid ibn Arfatah mentioned al-Mukhtar and said: "A liar." And I heard the Messenger of Allah, may Allah bless him and grant him peace, saying: "Whoever lies about me intentionally, then let him take his seat in Hell."
حدثنا أبو بكر قال حدثنا محمد بن بشر قال حدثنا زكريا عن خالد بن سلمة عن مسلم مولى خالد بن عرفطة أن خالد بن عرفطة ذكر المختار فقال كذاب وسمعت رسول الله صلى الله عليه وسلم يقول من كذب علي متعمدا فليتبوأ مقعده من جهنم