Musannaf Ibn Abi Shayba 35:175

Ibn ‘Ulayyah narrated to us, from ‘Abd al-Rahman ibn Ishaq, from al-Zuhri, from Sa‘id ibn al-Musayyib, who said: Abu Hurayrah said: The Messenger of Allah (ﷺ) declared sacred what is between its two lava fields—meaning Medina. Abu Hurayrah said: If I found the gazelles stationary, I would not have startled them.