It is narrated from Ikrimah, may Allah have mercy on him, that Ibn Abbas, may Allah be pleased with them both, was asked about the animals slaughtered by the Christians of Arabia. He spoke about their permissibility and recited this verse: "Whoever among you takes them as friends, then surely he is one of them." (__QUR_N__ Al-Ma'idah: 51) However, our teacher did not mention Ikrimah as an intermediary, and it is not established that Thawri, may Allah have mercy on him, met Ibn Abbas, may Allah be pleased with them both.
Hadith Referenceمسند الإمام الشافعي / كتاب الأطعمة والصيد والذبائح / 1536
Hadith Takhrijاسناده صحيح اخرجه البيهقي: 9/ 217 - وفى المعرفة السنن والآثار له (5557) ۔ ومالك في الموطا : الذبائح، باب ما يجوز من الزكاة على حال الضرورة۔