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"And (remember) when you said, "O Moosaa (Moses)! We cannot endure one kind of food, So invoke your Lord for us to bring forth for us of what the earth grows, its herbs, its cucumbers, its Fum (wheat or garlic), its lentils and its onions." He said, "Would you exchange that which is better for that which is lower? Go you down to any town and you shall find what you want!" And they were covered with humiliation and misery, and they drew on themselves the Wrath of Allaah, That was because they used to disbelieve the Ayaat (proofs, evidences, verses, lessons, signs, revelations, etc.) of Allaah and killed the Prophets wrongfully, That was because they disobeyed and used to transgress the bounds (in their disobedience to Allaah, i.e, commit crimes and sins)." [Al-Baqarah (2):61]

Narrated Zaid bin Khalid Al-Juhani:

A man asked the Prophet about the picking up of a "Luqata" (fallen lost thing). The Prophet replied, "Recognize and remember its tying material and its container, and make public announcement (about it) for one year, then utilize it but give it to its owner if he comes." Then the person asked about the lost camel. On that, the Prophet got angry and his cheeks or his Face became red and he said, "You have no concern with it as it has its water container, and its feet and it will reach water, and eat (the leaves) of trees till its owner finds it." The man then asked about the lost sheep. The Prophet replied, "It is either for you, for your brother (another person) or for the wolf." [The Book of Knowledge Volume 1, Book 3, Hadeeth 91]