(11) باب النَّهْىِ عَنْ إِنْشَادِ الضَّوَالِّ، فِي الْمَسْجِدِ
It 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.
Reference: Sunan Ibn Majah 766
In-book reference: Book 4, Hadith 32
English translation: Vol. 1, Book 4, Hadith 766