It was narrated that Ibn 'Umar said:

"The Messenger of Allah said: There are two characteristics in which the Muslims are dependent upon their Mu'adh-dhins: their prayer and their fasting."

It was narrated that Bilal came to the Prophet to call him for the Fajr prayer, and was told:

"He is sleeping." He said: "As-salatu khairum minan-nawm, As-salatu khairum minan-nawm (The prayer is better than sleep, the prayer is better than sleep). These words were approved of in the Adhan for the Fajr, and that is how it remained.

It was narrated that Abu Sa'eed Al-Khudri said:

"The Messenger of Allah said: 'When you hear the call (to prayer), say what the Mu'adh-dhin says.'"

It was narrated that Jabir bin 'Abdullah said:

"The Messenger of Allah said: 'Whoever says when he hears the call to the prayer: "Allahumma Rabba hadhihid-da'watit-tammah was-salatil-qa'imah, ati Muhammadanil-wasilata wal-fadilah, wab'athhu maqaman mahmudanilladhi wa'adtah (O Allah, Lord of this perfect call and the prayer to be offered, grant M…

It was narrated that Abu Hurairah said:

"I heard the Messenger of Allah himself say: 'The Mu'adh-dhin's sins will be forgiven as far as his voice reaches, and every wet and dry thing will pray for forgiveness for him. For the one who attends the prayer, twenty-five Hasanat (good deeds) will be recorded, and it is will be expiation (for sins committed) between them (the two prayers).'"

It was narrated that Ibn 'Abbas said:

"The Messenger of Allah said: 'Let the best of you give the call to prayer (Adhan), and let those who are most versed in the Qur'an lead you in prayer.'"

It was narrated that Anas bin Malik said:

"They looked for something by means of which they could call out informing of (the time of) the prayer. Then Bilal was commanded to say the phrases of the Adhan twice and the phrases of the Iqamah once."

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 wa…

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 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 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 yo…

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 …

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 p…

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.

It was narrated from Anas that:

The Prophet saw some sputum in the prayer direction of the mosque and he became so angry that his face turned red. Then a woman from among the Ansar came and scraped it off, and put some Khaluq on that spot. The Messenger of Allah said: "How good this is."

It was narrated that 'Abdullah bin 'Umar said:

"The Messenger of Allah saw some sputum in the prayer direction of the mosque, when he was praying in front of the people. He scratched it off, then when the prayer was over, he said: 'When anyone of you is performing prayer, Allah is before him, so none of you should spit toward the front while praying.'"

It was narrated from 'Aishah that:

The Prophet scratched some spittle from the prayer direction of the mosque.

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.'"