Jami` at-Tirmidhi Book 49, Hadith 59
"We were sitting with the Prophet (ﷺ) and he said: 'I do not know how long I will be with you, so stick to the two after me,' and he signaled towards Abu Bakr and 'Umar."
that the Messenger of Allah (ﷺ) said: "Stick to the two after me, Abu Bakr and 'Umar."
that the Messenger of Allah (ﷺ) said about Abu Bakr and 'Umar: "These two are the masters of the elder people among the inhabitants of Paradise. From the first ones and the last ones, not including the Prophets and the Messengers. But do not inform them O 'Ali."