Musannaf Ibn Abi Shayba 12:24

Abu Bakr narrated to us, he said: Abu Dawud narrated to us, from Hisham, from Qatadah, from Sa’id ibn al-Musayyib. He said: I asked him about the dog that is sent upon game. He said: "Eat, even if it has eaten two-thirds of it." I said: "From whom [did you hear this]?" He said: "From Salman."