Musannaf Ibn Abi Shayba 16:47

Abu Bakr narrated to us, he said: Waki’ narrated to us, from Talha bin Yahya, from Musa bin Talha, that a man asked Umar about the rabbit. Umar said: "Were it not that I dislike to add to the hadith or subtract from it, I would send for a man for you." So he sent for Ammar, and he came. He said: "We were with the Prophet, may Allah bless him and grant him peace, and we stopped at such-and-such a place." He said: "Then a man from the Bedouins gifted him a rabbit, and we ate it. The Bedouin said: 'I saw blood.' The Prophet, may Allah bless him and grant him peace, said: 'There is no harm.'"