‏الإمارة : Hadeeth No:4693 It has been narrated through a different chain of transmitters on the authority of Sufyan who said that he heard 'Umar b. al-Khattab relate (this tradition) from the Prophet (sallAllaahu alayhi wa sallam) while he was delivering a sermon from the pulpit....

‏فضائل الصحابة‏ : Hadeeth No:6122 This hadith has been transmitted on the authority of Sa'd b. Ibrahim with a slight variation of wording....