Al-Lu'lu Wal-Marjan 1123 — The Book of Al-Luqata (a well-tied purse or pouch or things lost/picked up by somebody)

Zaid bin Khalid Narrated from:

A man came to Allâh's Messenger ﷺ and asked about Al-Luqata (a fallen thing). The Prophet ﷺ said, "Recognize its container and its tying material and then make public announcement about it for one year and if its owner shows up, give it to him; otherwise use it as you like."The man said, "What about a lost sheep?" The Prophet ﷺ said, "It is for you, your brother or the wolf." The man said, "What about a lost camel?" The Prophet ﷺ said, "Why should you take it as it has got its water-container (its stomach) and its hooves and it can reach the places of water and can eat of the trees till its owner finds it?" ( Sahîh Al-Bukhârî, Hadîth No. 560, Vol. 3 )