that the Messenger of Allah (ﷺ) was at Hira, him, Abu Bakr, 'Umar, 'Uthman, 'Ali, Talhah and Az-Zubair (may Allah be pleased with them all), and the boulder (mount Hira) shook. So the Prophet (ﷺ) said: "Be calm, for there is none upon you except a Prophet, or a Siddiq, or a martyr."
Jami` at-Tirmidhi Book 49, Hadith 92
← Previous Hadith that the Prophet (ﷺ) said: "While a man was tending some of his sheep, a wolf came and took a sheep. So its owner came and retrieved it. The wolf said: 'What will you do for it on the Day of the Predator, the Day when there will be no shepherd for it other than me?'" The Messenger of Allah (ﷺ) said: "So I believe in that, I and Abu Bakr, and 'Umar." (One of the narrators) Abu Salamah said: "And the two of them were (present) not among the people that day."

Jami` at-Tirmidhi Book 49, Hadith 91 Next Hadith → that the Messenger of Allah (ﷺ), Abu Bakr, 'Umar, and 'Uthman climbed Uhud (mountain) and it shook them, so the Prophet of Allah (ﷺ) said: "Be firm O Uhud! For there is none upon you except a Prophet, a Siddiq, and two martyrs."

Jami` at-Tirmidhi Book 49, Hadith 93