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." (Using translation from Bukhārī 109)
قَالَ رَسُولُ اللهِ ﷺ «مَنْ قَالَ عَلَيَّ مَا لَمْ أَقُلْ فَلْيَتَبَوَّأْ مَقْعَدَهُ مِنَ النَّارِ»