Sunan Ibn Majah 766
سنن ابن ماجه#766HasanIt was narrated from 'Amr bin Shu'aib from his father, from his grandfather that:The Messenger of Allah forbade making lost-and-found announcements in the mosque
Scholarly Authentication
We show the most cautious grade (weakest-wins) as the overall label. Individual scholars graded it as follows:
Al-AlbaniHasan
Muhammad Fouad Abd al-BaqiHasan
Shuaib Al ArnautHasan
Zubair Ali ZaiHasan
In-book reference: 4:32