Lost Things Picked up by Someone (Luqatah) -
A man came and asked Allah's Messenger (ﷺ) about picking a lost thing. The Prophet (ﷺ) said, "Remember the description of its container and the string it is tied with, and make public announcement about it for one year. If the owner shows up, give it to him; otherwise, do whatever you like with it." He then asked, "What about a lost sheep?" The Prophet (ﷺ) said, "It is for you, for your brother (i.e. its owner), or for the wolf." He further asked, "What about a lost camel?" The Prophet (ﷺ) said, "It is none of your concern. It has its water-container (reservoir) and its feet, and it will reach water and drink it and eat the trees till its owner finds it."
AI Summary
The key points are: 1. Ubai bin Ka'b found a purse containing 100 dinars and took it to the Prophet Muhammad. 2. The Prophet instructed Ubai to make a public announcement about it for one year, then another year, but no one claimed it. 3. After the third year, the Prophet told Ubai to keep the purse, count the money, and use it if the owner did not come to claim it.