Abu Dawud Book 9, Hadith Number 2811.

Narated By Ibn ‘Abbas : The verse: “So eat of (meats) on which Allah’s name hath been pronounced (Qur’an vi. 118)” and the verse: “Eat not of (meats) on which Allah’s name hath not been pronounced (Qur’an v. 6),” were abrogated, meaning an exception was made therein by the verse: “The food of the people of the Book is lawful unto you and yours lawful unto them. (Qur’an vi. 121)”