‏البر والصلة والآداب‏ : Hadeeth No:6284 Abu Huraira reported it was said to Allaah's Messenger (sallAllaahu alayhi wa sallam): Invoke curse upon the polytheists, whereupon he said: I have not been sent as the invoker of curse, but" I have been sent as mercy."...

‏الإيمان : Hadeeth No:386 Abu Huraira reported: The Messenger of Allaah (sallAllaahu alayhi wa sallam) said: There is for every Prophet a prayer, and I intend (if Allaah so willed) that I would reserve my prayer for the intercession of my Ummah on the Day of Resurrection....