Jami` at-Tirmidhi Book 49, Hadith 81
"I don't think that a man who degrades Abu Bakr and 'Umar loves the Prophet (ﷺ)."
that 'Umar said to Abu Bakr: "O best of people after the Messenger of Allah (ﷺ)!" So Abu Bakr said: "If you say that, then I have heard the Messenger of Allah (ﷺ) say: 'The sun has not risen upon a man better than 'Umar.'"
that the Messenger of Allah (ﷺ) said: "If there was to have a Prophet after me, it would have been 'Umar bin Al-Khattab."