Sahih Al Bukhari 1: Chapter 3, Hadith 110

(110) The sin of a person who tells a lie against the Prophet

حَدَّثَنَا مُوسَى، ‏‏‏‏‏‏قَالَ:‏‏‏‏ حَدَّثَنَا أَبُو عَوَانَةَ، ‏‏‏‏‏‏عَنْ أَبِي حَصِينٍ، ‏‏‏‏‏‏عَنْ أَبِي صَالِحٍ، ‏‏‏‏‏‏عَنْ أَبِي هُرَيْرَةَ، ‏‏‏‏‏‏عَنِ النَّبِيِّ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ، ‏‏‏‏‏‏قَالَ:‏‏‏‏ "تَسَمَّوْا بِاسْمِي، ‏‏‏‏‏‏وَلَا تَكْتَنُوا بِكُنْيَتِي، ‏‏‏‏‏‏وَمَنْ رَآنِي فِي الْمَنَامِ فَقَدْ رَآنِي، ‏‏‏‏‏‏فَإِنَّ الشَّيْطَانَ لَا يَتَمَثَّلُ فِي صُورَتِي، ‏‏‏‏‏‏وَمَنْ كَذَبَ عَلَيَّ مُتَعَمِّدًا فَلْيَتَبَوَّأْ مَقْعَدَهُ مِنَ النَّارِ".

SAHIH HADITH:

Narrated Abu Huraira: The Prophet said, Name yourselves with my name (use my name) but do not name yourselves with my Kunya name (i.e. Abul Qasim). And whoever sees me in a dream then surely he has seen me for Satan cannot impersonate me. And whoever tells a lie against me (intentionally), then (surely) let him occupy his seat in Hell-fire.

REFERENCE:

Sahih Al Bukhari 1: Chapter 3, Hadith 110