The Messenger of Allah ﷺ said, "Whoever lies about me deliberately, let him take his seat in the Fire."
حدثنا عبد الله حدثنا أبو عبد الله السلمي قال حدثني حرمي بن عمارة حدثنا شعبة قال أخبرني قتادة وحماد بن أبي سليمان وسليمان التيمي
أن رسول الله ﷺ قال من كذب علي متعمدا فليتبوأ مقعده من النار
Its chain of transmission is sahih. Harmi bin Umara was graded trustworthy by the scholars, and he has narrations in the Sahihayn. The hadith has already appeared at 13034.