Yahya related to me from Malik from Abd ar-Rahman ibn Said fromAmr ibn Shuayb that when the Messenger of Allah, may Allah bless himand grant him peace, came back from Hunayn heading for al-Jiirrana,the people crowded around so much to question him that his she-camelbacked into a tree, which became entangled in his cloak and pulled itoff his back. The Messenger of Allah, may Allah bless him and granthim peace, said, "Return my cloak to me. Are you afraid that I willnot distribute among you what Allah has given you as spoils. By He inwhose hand my self is! Had Allah given you spoils equal to the numberof acacia trees on the plain of Tihama, I would have distributed itamong you. You will not find me to be miserly, cowardly, or a liar."Then the Messenger of Allah, may Allah bless him and grant him peace,got down and stood among the people, and said, "Hand over even theneedle and thread, for stealing from the spoils is disgrace, fire,ignominy on the Day of Rising for people who do it." Then he took abit of camel fluff or something from the ground and said, "By He inwhose hand my self is! What Allah has made spoils for you is not mine- even the like of this! - except for the tax of one fifth, and thetax of one fifth is returned to you."
USC-MSA web (English) reference: Book 21, Hadith 22
Arabic reference: Book 21, Hadith 983