It was narrated that 'Umar bin Khattab said: I heard the Messenger of Allah say: 'Whoever builds a mosque in which the Name of Allah is mentioned, Allah will build a house for him in Paradise.'

It was narrated that 'Uthman bin 'Affan said: I heard the Messenger of Allah say: 'Whoever builds a mosque for the sake of Allah, Allah will build something similar for him in Paradise.'

It was narrated that 'Ali bin Abu Talib said: The Messenger of Allah said: 'Whoever builds a mosque for the sake of Allah (from his own wealth), Allah will build a house for him in Paradise.'

It was narrated from Jabir bin 'Abdullah that: The Messenger of Allah said: Whoever builds a mosque for the sake of Allah, like a sparrow's nest for Allah or even smaller, Allah will build for him a house in Paradise.

It was narrated that Anas bin Malik said: The Messenger of Allah said: 'The Hour will not begin until the people compete in (building) mosques.'

It was narrated that Ibn 'Abbas said: The Messenger of Allah said: I see you building your mosque high after I am gone, just as the Jews built their synagogues high and the Christians built their churches high.

It was narrated that 'Umar bin Khattab said: The Messenger of Allah said: No people's deeds ever became evil deeds but they started to adorn their places of worship.

It was narrated that Anas bin Malik said: The location where the Prophet's Mosque was built belonged to Banu Najjar. In it there were date-palm trees and graves of the idolaters. The Prophet said to them: 'Name its price.' They said: 'We will never take any money for it.' The Prophet built it and they were assisting him, and the Prophet was saying: 'The real life is the life of the Hereafter so forgive the Ansar and the Muhajirah.' Before the mosque was built, the Prophet would perform prayer wherever he was when the time for prayer came.

It was narrated from 'Uthman bin Abul-'As that: The Messenger of Allah commanded him to build the mosque of Ta'if in the place where the Taghuts used to be

It was narrated that Ibn 'Umar was asked about gardens in which excrement was thrown.: He said: If it has been watered several times, then perform prayer there, and he attributed that to the Prophet.

It was narrated that Abu Sa'eed Khudri said: The Messenger of Allah said: 'All the earth is a mosque, except for graveyards and Hammam.'

It was narrated that Ibn 'Umar said: Allah's Messenger prohibited prayer from being performed in seven places: The garbage dump, the slaughtering area, the graveyard, the commonly used road, the bathroom, in the area that camels rest at, and above the Ka'bah.

It was narrated from 'Umar bin Khattab that: The Messenger of Allah said: There are seven places where it is not permissible to perform the prayer: The top of the House of Allah; graveyards; garbage dumps; slaughterhouses; bathrooms; the area that camels rest, and the main road.

It was narrated from Ibn 'Umar that: The Messenger of Allah said: There are things which are not befitting for the mosque: it should not be taken as a thoroughfare; weapons should not be unsheathed in it; bows should not be drawn nor arrows shot in it; no one should pass through it carrying raw meat; no prescribed punishment or retaliatory punishment should be carried out in it; and it should not be used as a marketplace.

It was narrated from 'Amr bin Shu'aib from his father that his grandfather said: The Messenger of Allah forbade buying and selling in the mosque, and reciting poetry in the mosque.

It was narrated from Wathilah bin Asqa' that: The Prophet said: Keep your infants, your insane and your evil ones away from your mosques. Avoid engaging in transactions and disputes, raising your voices, carrying out your prescribed punishments and unsheathing your swords therein. Make places for purification at their gates, and perfume them with incense on Fridays. (Maudu')

It was narrated that Ibn 'Umar said: We used to sleep in the mosque at the time of the Messenger of Allah.

Ya'ish bin Qais bin Tikhfah narrated that his father, who was one of the people of Suffah, said: The Messenger of Allah said to us: 'Come with me.' So we went to the house of 'Aishah, where we ate and drank. Then the Messenger of Allah said to us: 'If you want, you can sleep here, or if you want you can go out to the mosque.' We said: 'We will go out to the mosque.'

It was narrated that Abu Dharr Al-Ghifari said: I said: 'O Messenger of Allah! Which mosque was built first?' He said: 'Al-Masjid Al-Haram (in Makkah).' I said: 'Then which?' He said: 'then Al-Masjid Al-Aqsa (in Jerusalem).' I said: 'How many years between them?' He said: 'Forty years, but the whole earth is a mosque for you, so pray wherever you are when the time for prayer comes.'

Mahmud bin Rabi' Al-Ansari, who remembered that the Messenger of Allah spat a mouthful of water from a bucket into a well that belonged to them, narrated that : 'Itban bin Malik As-Salimi who was the chief of his people Banu Salim and had participated in (the battle of) Badr with the Messenger of Allah said: I came to the Messenger of Allah and said: 'O Messenger of Allah, my sight is failing and the flood comes and prevents me from reaching the mosque of my people, and it is too hard for me to cross the water. Do you think you could come and perform prayer in my house in a place which I can then take as a place of prayer?' He said: 'I will do that.' The following day, the Messenger of Allah and Abu Bakr came, when the heat of the day had grown intense. He asked permission to enter, and I gave him permission. He did not sit down until he said: 'Where would you like me to perform prayer for you in your house?' I showed him the place where I wanted him to pray, so the Messenger of Allah stood and we lined up behind him, and he led us in praying two Rak'ah (units). Then I asked him to stay and eat some Khazirah that had been prepared for them.'

It was narrated from Abu Hurairah that: A man among the Ansar sent word to the Messenger of Allah saying: Come and designate a place in my house where I can perform prayer,' that was after he had become blind. So he went and did that.

It was narrated that Anas bin Malik said: One of my paternal uncles made some food for the Prophet and said to the Prophet: 'I would like you to eat and perform prayer in my house.' So he went to him, and in his house there was one of these Fahl. He ordered that a corner be swept and water sprinkled in it, then he performed prayer and we prayed with him.' (Sahih)Abu 'Abdullah bin Majah said: A Fahl is a mat that has become black (through use).

It was narrated that Abu Sa'eed Al-Khudri said: The Messenger of Allah said: 'Whoever removes something harmful from the mosque, Allah will build for him a house in Paradise.'

It was narrated from 'Aishah that: The Messenger of Allah commanded that mosque to be built in (Ad-Dur) villages, and that they be purified and perfumed

It was narrated from 'Aishah that: The Messenger of Allah commanded that places of prayer be established in villages, and that they be purified and perfumed