It was narrated from Sulaiman bin Burdah that his father said: "The Messenger of Allah performed prayer, then a man said: 'Who was looking for the red camel?' The Prophet said: 'May you not find it! The mosques were built for that for which they were built.'"

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.

It was narrated from Abu 'Abdullah, the freed slave of Shaddad bin Had that: He heard Abu Hurairah say: "I heard the Messenger of Allah say: 'Whoever hears a man making a lost-and-found announcement in the mosque, let him say: "May Allah not return it to you!" For the mosques were not built for that.'"

It was narrated that Abu Hurairah said: The Messenger of Allah said: "If you cannot find anywhere (for prayer) except sheep's resting-places and camels' resting-places, then perform prayer in the sheep's resting-places and do not perform prayer in the camels' resting-places."

It was narrated that 'Abdullah bin Mughaffal Al-Muzani said: "The Prophet said: 'Perform prayer in the sheep's resting-places and do not perform prayer in the camels' resting-places, for they were created from the devils."

'Abdul-Malik bin Rabi' bin Sabrah bin Ma'bad Al-Juhani said: "My father told me, from his father that the Messenger of Allah said: 'Do not perform prayer in the camels' resting-places, and perform prayer in the sheep's resting-places.'"

It was narrated that Fatimah the daughter of the Messenger of Allah said: "Whenever the Messenger of Allah entered the mosque he would say: 'Bismillah, was-salamu 'ala Rasulillah, Allahummagh-firli dhunubi waftah li abwaba rahmatika. (In the Name of Allah, and peace be upon the Messenger of Allah. O Allah, forgive me my sins and open to me the gates of Your mercy).' When he left he would say: 'Bismillah, was-salamu 'ala Rasulillah, Allahummagh-firli dhunubi waftah li abwaba fadlika. (In the Name of Allah, and peace be upon the Messenger of Allah. O Allah, forgive me my sins and open to me the gates of Your bounty).'"

It was narrated that Abu Humaid As-Sa'idi said: "The Messenger of Allah said: 'When anyone of you enters the mosque, let him send peace upon the prophet, then let him say: "Allahummaftah li abwaba rahmatika (O Allah, open to me the gates of Your mercy)." And when he leaves, let him say: "Allahumma inni as'aluka min fadlika. (O Allah, I ask of you from Your bounty)."

It was narrated from Abu Hurairah that: The Mesenger of Allah said: "When anyone of enters the mosque, let him send peace upon the Prophet, then let him say: 'Allahumma aftahli abwaba rahmatik (O Allah, open to me the gates of Your mercy).' And when he leaves, let him send peace upon the Prophet and say: 'Allahumma- simni minash-shaitanir-rajim (O Allah, protect me from the accursed Shaitan).'"

It was narrated that Abu Hurairah said: "The Messenger of Allah said: 'When one of you performs ablution and does it well, then he comes to the mosque with no other motive but prayer and not seeking anything other than the prayer, he does not take one step but Allah raises him in status one degree thereby, and takes away one of his sins, until he enters the mosque. When he enters the mosque he is in a state of prayer so long as he is waiting for the prayer.'"