صَحِيحُ مُسْلِمٍ
Sahih Muslim 569 a
The Book of Mosques and Places of Prayer
The prohibition of making lost property announcements in the masjid, and what should be said by one who hears a person making such an announcement
وَحَدَّثَنِي حَجَّاجُ بْنُ الشَّاعِرِ، حَدَّثَنَا عَبْدُ الرَّزَّاقِ، أَخْبَرَنَا الثَّوْرِيُّ، عَنْ عَلْقَمَةَ بْنِ مَرْثَدٍ، عَنْ سُلَيْمَانَ بْنِ بُرَيْدَةَ، عَنْ أَبِيهِ، أَنَّ رَجُلاً، نَشَدَ فِي الْمَسْجِدِ فَقَالَ مَنْ دَعَا إِلَى الْجَمَلِ الأَحْمَرِ . فَقَالَ النَّبِيُّ صلى الله عليه وسلم لاَ وَجَدْتَ . إِنَّمَا بُنِيَتِ الْمَسَاجِدُ لِمَا بُنِيَتْ لَهُ .
Sulaiman b. Buraida narrated it on the authority of his father that a man cried out in the mosque saying: Who had called out for the red camel? Upon this the Messenger of Allah (ﷺ) said: May it not be restored to you! The mosques are built for what they are meant.
Sahih Muslim, 569 aSahihصحيح