(38) باب إِثْمِ مَنْ كَذَبَ عَلَى النَّبِيِّ صلى الله عليه وسلم
Narrated Salama:
I heard the Prophet (ﷺ) saying, "Whoever (intentionally) ascribes to me what I have not said then (surely) let him occupy his seat in Hell-fire."
Reference: Sahih al-Bukhari 109
In-book reference: Book 3, Hadith 51
USC-MSA web (English) reference(deprecated numbering scheme): Vol. 1, Book 3, Hadith 109