Narrated from Sayyiduna Ubayy bin Ka'b (may Allah be pleased with him), he says: In the time of the Prophet (peace and blessings be upon him), I picked up one hundred dinars (which someone had lost) and came to the Messenger of Allah (peace and blessings be upon him). He (peace and blessings be upon him) said: Announce it for one year. I announced it for one year and then came to the Messenger of Allah (peace and blessings be upon him) and said that I have announced it for one year. He (peace and blessings be upon him) said: Announce it for another year. So I announced it for another year and then came to the Messenger of Allah (peace and blessings be upon him) and said that I have announced it for another year. This time, he (peace and blessings be upon him) said: Now count them, recognize its strap, and benefit from them.