Yahya related to me from Malik from Thawr ibn Zayd ad-Dili thatAbdullah ibn Abbas was asked about animals slaughtered by theChristian Arabs. He said, "There is no harm in them," but he recitedthis ayat, "Whoever takes them as friends is from them." (Sura 5 ayat54).
USC-MSA web (English) reference: Book 24, Hadith 5
Arabic reference: Book 24, Hadith 1049