It is narrated from Sayyiduna al-Irbad bin Sariyah (may Allah be pleased with him) that the Prophet (peace and blessings be upon him) said: "Every predatory animal with fangs is not lawful for you, nor are domestic donkeys. Do not enter the houses of the People of the Book (without permission), and do not consume their wealth except what they give willingly, and do not strike. Does any of you, having eaten his fill and reclining on his couch, think that Allah, the Mighty and Majestic, has not forbidden anything except what is in the Qur'an? Listen! By Allah, I have narrated, I have commanded and I have admonished."
Hadith Referenceالمعجم الكبير للطبراني / باب العين / 15736