From Sahih Bukhari (Hadith 3675):
Narrated Anas bin Malik:The Prophet (ﷺ) once climbed the mountain of Uhud with Abu Bakr, `Umar and `Uthman. The mountain shook with them. The Prophet (ﷺ) said (to the mountain), "Be firm, O Uhud! For on you there are no more than a Prophet, a Siddiq and two martyrs
Reference: Bukhari 3675