Hadith 4170
Narrated Al-Musaiyab: I met Al-Bara bin `Azib and said (to him). "May you live prosperously! You enjoyed the company of the Prophet and gave him the Pledge of allegiance (of Al-Hudaibiya) under the Tree." On that, Al- Bara' said, "O my nephew! You do not know what we have done after him (i.e. his death).
Hadith 7079
Narrated Ibn `Abbas: The Prophet said, "Beware! Do not renegade as (disbelievers) after me by striking (cutting) the necks of one another."
Hadith 7563
Narrated Abu Huraira: The Prophet said, "(There are) two words which are dear to the Beneficent (Allah) and very light (easy) for the tongue (to say), but very heavy in weight in the balance. They are: ''Subhan Allah wa-bi hamdihi'' and ''Subhan Allah Al-`Azim."a