Sunan Abi Dawud 1707
سنن أبي داود#1707SahihThe aforesaid tradition has also been transmitted by Zaid bin Khalid al-Juhani through a different chain of narrators. This version has:The Messenger of Allah (SWAS) was asked about a find. He replied : Make the matter known for a year; if its owner comes, give it to him, otherwise note its string and its container and have it along with your property. If its owner comes, deliver it to him
Scholarly Authentication
We show the most cautious grade (weakest-wins) as the overall label. Individual scholars graded it as follows:
Al-AlbaniSahih
Muhammad Muhyi Al-Din Abdul HamidSahih
Zubair Ali ZaiSahih
In-book reference: 10:7