‏الطهارة : Hadeeth No:445 Jami' b. Shaddad reported: I heard Humran b. Aban narrate to Abu Burda in this very mosque during the governorship of Bishr that 'Uthman b. Alfan said: The Messenger of Allaah (sallAllaahu alayhi wa sallam) observed: He who completed ablution as Allaah, the Exalted, enjoined upon him, his obligatory...

‏فضائل الصحابة‏ : Hadeeth No:5946 'Urwa reported: 'Aisha said to me: Your fathers (Zubair and Abu Bakr) were amongst those about whom (it has been revealed):" Those who responded to the call of Allaah and His Messenger after the misfortune had fallen upon them."...