From Sahih Bukhari (Hadith 7034):
Narrated `Abdullah bin `Abbas:Allah's Messenger (ﷺ) said, "While I was sleeping, two golden bangles were put in my two hands, so I got scared (frightened) and disliked it, but I was given permission to blow them off, and they flew away. I interpret it as a symbol of two liars who will appear." 'Ubaidullah said, "One of them was Al-`Ansi who was killed by Fairuz at Yemen and the other was Musailama (at Najd)
Reference: Bukhari 7034