‏العلم : Hadeeth No:6460 Abu Huraira reported Allaah's Messenger (sallAllaahu alayhi wa sallam) having said: The time would draw close to the Last Hour and knowledge would decrease. The rest of the hadith is the same....

‏فضائل الصحابة‏ : Hadeeth No:5877 Ibn Abu Mulaika reported: I heard A'isha as saying and she was asked as to whom Allaah's Messenger (sallAllaahu alayhi wa sallam) would have nominated his successor if he had to nominate one at all. She said: Abu Bakr. It was said to her: Then whom after Abu Bakr? She said: Umar. It was said to her....