Sahih al-Bukhari Book 61, Hadith 127
Musailama-al-Kadhdhab (i.e. the liar) came in the life-time of Allah's Messenger (ﷺ) with many of his people
(to Medina) and said, "If Muhammad makes me his successor, I will follow him." Allah's Messenger (ﷺ)
went up to him with Thabit bin Qais bin Shams; and Allah's Messenger (ﷺ) was carrying a piece of a datepalm
leaf in his hand. He stood before Musailama (and his companions) and said, "If you asked me
even this piece (of a leaf), I would not give it to you. You cannot avoid the fate you are destined to, by
Allah. If you reject Islam, Allah will destroy you. I think that you are most probably the same person
whom I have seen in the dream." Abu Huraira told me that Allah's Messenger (ﷺ); said, "While I was
sleeping, I saw (in a dream) two gold bracelets round my arm, and that worried me too much. Then I
was instructed divinely in my dream, to blow them off and so I blew them off, and they flew away. I
interpreted the two bracelets as symbols of two liars who would appear after me. And so one of them
was Al-Ansi and the other was Musailama Al-Kadhdhab from Al-Yamama."
The Prophet (ﷺ) said, "When Khosrau perishes, there will be no more Khosrau a after him, and when Caesar perishes, there will be no more Caesar after him," The Prophet (ﷺ) also said, "You will spend the treasures of both of them in Allah's Cause."
The Prophet (ﷺ) said, "In a dream I saw myself migrating from Mecca to a place having plenty of date trees. I thought that it was Al-Yamama or Hajar, but it came to be Medina i.e. Yathrib. In the same dream I saw myself moving a sword and its blade got broken. It came to symbolize the defeat which the Muslims suffered from, on the Day of Uhud. I moved the sword again, and it became normal as before, and that was the symbol of the victory Allah bestowed upon Muslims and their gathering together. I saw cows in my dream, and by Allah, that was a blessing, and they symbolized the believers on the Day of Uhud. And the blessing was the good Allah bestowed upon us and the reward of true belief which Allah gave us after the day of Badr.