Musannaf Ibn Abi Shayba 19:443

Abu Bakr narrated to us, he said: Ibn Abi ‘Adi narrated to us, from Dawud, he said: Masruq said: He is to be stoned, and he is to be stoned with the stones with which he was stoned, and his tracks are to be erased. He means regarding the one who comes upon an animal.