Does the prohibition mentioned in the hadith: "Whoever hears a man announcing a lost item in the mosque, let him say: 'May Allah not return it to you,' for mosques were not built for this," include someone who informs the Imam or caretaker about the loss of a valuable item in the mosque? And is it specific to someone who has lost something, or does it apply to every announcement or public declaration made therein?
It is not permissible to announce lost property in mosques, because mosques were built for the worship of Allah. The prohibition of this has been mentioned in the Prophetic Hadeeth. Exceptions to this include announcing acts of obedience and good deeds, such as iftar meals or scholarly lessons. As for worldly announcements, such as Hajj campaigns, they must be made outside the mosque.
Summarized from the full answer at Ftawy · reviewed Sep 2, 2026
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