Narrated 'Aishah:
that the Messenger of Allah (ﷺ) said: "Among the nations, there used to be Muhaddathun (those who were given understanding), and if there were one in my nation, it would be 'Umar bin Al-Khattab." (ES)
English reference (ES): Vol. 1, Book 46, Hadith 3693 (ES)
Arabic reference (ES): Book 49, Hadith 4057 (ES)