‏الصلاة : Hadeeth No:1081 Abu Huraira reported: The Messenger of Allaah (sallAllaahu alayhi wa sallam) said: Let there be curse of Allaah upon the Jews and the Christians for they have taken the graves of their Prophets as places of worship....

‏الصلاة : Hadeeth No:1726 Ibn Mas'ud reported Allaah's Messenger (sallAllaahu alayhi wa sallam) as saying: Wretched is the man who says: I forgot such and such a sura, or I forget such and such a verse, but he has been made to forget....