Bukhari Collection: ::Book Number 5:: Hadith # 24
Narrated Anas bin Malik:The Prophet once climbed the mountain of Uhud with Abu Bakr, `Umar and `Uthman. The mountain shook with them. The Prophet said (to the mountain), "Be firm, O Uhud! For on you there are no more than a Prophet, a Siddiq and two martyrs.