Musnad Ahmad 1153:1151

Abu Qatan narrated to us, Yunus narrated to us, from Mujahid, from Aisha, who said: "The family of the Messenger of Allah, may Allah bless him and grant him peace, had a wild animal. When the Messenger of Allah, may Allah bless him and grant him peace, would go out, it would run about and play, and come and go. But when it sensed that the Messenger of Allah, may Allah bless him and grant him peace, had entered, it would lie down and not stir, out of dislike for disturbing him."