Sayyiduna Ubayy bin Ka'b (may Allah be pleased with him) used to say: I found a pouch in which there were one hundred gold coins. So I came to the Prophet (peace and blessings of Allah be upon him) and informed him. He (peace be upon him) said: "Announce it to the people for one year." So I inquired, but I did not find anyone who recognized it. Then I came to the Prophet (peace be upon him) again. He (peace be upon him) said: "Announce it to the people for another year." So I inquired, but no one was found. Then I came to the Prophet (peace be upon him) a third time, and he (peace be upon him) said: "Remember its appearance, its count, and its tying. If its owner comes (then give it to him), otherwise use it yourself."

Narrated by Sayyiduna Abu Hurairah (may Allah be pleased with him) from the Noble Prophet (peace and blessings of Allah be upon him) that he said: "When I return to my house, I find a date lying on my bed. Then I pick it up to eat it, but then I fear that it might be from charity, so I throw it away."