Abu Dawud
Foods
Book Number: 021 / Hadith Number: 3795
Narated By Al-Miqdam ibn Ma'dikarib : The Prophet (pbuh) said: Beware, the fanged beast of prey is not lawful, nor the domestic asses, nor the find from the property of a man with whom treaty has been concluded, except that he did not need it. If anyone is a guest of people who provide no hospitality for him, he is entitled to take from them the equivalent of the hospitality due to him.