‏الفضائل : Hadeeth No:5844 Abu Huraira reported Allaah's Messenger (sallAllaahu alayhi wa sallam) having said that Ibrahim circumcised himself with the help of adz when he was eiclhty years old....

‏الذكر والدعاء والتوبة والاستغفار‏ : Hadeeth No:6555 This hadith has been narrated on the authority of Ubaidullah b. Umar with the same chain of transmitters and he said: Then utter:" My Lord. with Thine name I place my side and if Thou keepest me alive have mercy upon myself"...