On it being disliked to argue in the mosque or to raise voices there, announce a lost animal, buy and sell, rent and other transactions

Riyad as-Salihin (The Meadows of the Righteous)

by Imam Nawawi

310. Chapter: On it being disliked to argue in the mosque or to raise voices there, announce a lost animal, buy and sell, rent and other transactions

1696. Abu Hurayra heard the Messenger of Allah, may Allah bless him and grant him peace, say, "Anyone who hears a man asking about an animal he has lost in the mosque should say, 'May Allah not restore it to you. Mosques were not built for this." [Muslim]

1697. Abu Hurayra reported that Messenger of Allah, may Allah bless him and grant him peace, said, "When you see someone buying or selling in the mosque, then say, 'May Allah not give you any profit in your trading.' When you see someone asking there about a lost animal, then say, 'May Allah not restore it to you.'" [at-Tirmidhi]

1698. Burayda said that a man made an announcement in the mosque saying, "Who will find the red camel for me?' The Messenger of Allah, may Allah bless him and grant him peace, said, "May you not find it. The mosques were only built for what they were built for." [Muslim]

1699. 'Amr ibn Shu'ayb reported from his grandfather that the Messenger of Allah, may Allah bless him and grant him peace, forbade buying and selling in the mosque and for a lost animal to be asked about in it or for poetry to be recited in it." [Abu Dawud and at-Tirmidhi]

1700. As-Sa'ib ibn Yazid the Companion said, "Once when I was standing in the mosque, a man threw some stones at me. I looked and it was 'Umar ibn al-Khattab. He said, 'Go and bring those two men to me.' I brought them and he said, 'Who are you two?' or 'Where are you from?' They said, 'From the people of at-Ta'if.' He said, 'If you were from the people of this city, I would have punished you. You were raising your voices in the mosque of the Messenger of Allah.'" [al-Bukhari]