Muwatta Imam Malik (Riwayat Ibn al-Qasim)

And with the same chain of narration, it is narrated from Sayyiduna Abu Hurairah (may Allah be pleased with him), he used to say: If I see deer grazing in Madinah, I will not scare them away. (Because) the Messenger of Allah (peace and blessings of Allah be upon him) said: "The area between the two black stones (the land of Madinah) is a sanctuary (Haram)."