Sahih Bukhari Volume 006, Book 060, Hadith Number 114.
Narrated By Said bin Jubair : The people of Kufa disagreed (disputed) about the above Verse. So I went to Ibn Abbas and asked him about it. He said, "This Verse: "And whoever kills a believer intentionally, his recompense is Hell." was revealed last of all (concerning premeditated murder) and nothing abrogated it."