Muwatta Malik
Slaughtering Animals
Hadith #6
24.6
وَحَدَّثَنِي عَنْ مَالِكٍ، أَنَّهُ بَلَغَهُ أَنَّ عَبْدَ اللَّهِ بْنَ عَبَّاسٍ، كَانَ يَقُولُ مَا فَرَى الأَوْدَاجَ فَكُلُوهُ .
Yahya related to me from Malik that Abdullah ibn Abbas used to say, "You can eat anything that has had its jugular vein cut