The Messenger of Allah ﷺ said: '"Whoever narrates a Hadith from me thinking it to be false, then he is one of the two liars." (Using translation from Ibn Mājah 41)
قَالَ رَسُولُ اللهِ ﷺ مَنْ حَدَّثَ بِحَدِيثٍ وَهُوَ يَرَى أَنَّهُ كَذِبٌ فَهُوَ أَحَدُ الْكَذَّابِينَ