Encyclopedia of Prophetic Hadiths

"Straighten your rows, for indeed, straightening the row is from the perfection of the prayer."

"The places that are dearest to Allah are the mosques, and the places that are most hateful to Allah are the marketplaces."

While we were in the mosque with the Messenger of Allah (may Allah's peace and blessings be upon him), a Bedouin came and began to urinate in the mosque. The Companions of the Messenger of Allah (may Allah's peace and blessings be upon him) said: Stop! Stop! He said: The Messenger of Allah (may Allah's peace and blessings be upon him) said: "Do not interrupt him; let him." So they left him until he finished urinating. Then the Messenger of Allah (may Allah's peace and blessings be upon him) called him and said to him: "These mosques are not appropriate for anything of this kind of urine or filth. They are only for the remembrance of Allah Almighty, prayer, and recitation of the Qur’an" or as the Messenger of Allah (may Allah's peace and blessings be upon him) said. He said: Then he ordered a man from among the people who brought a bucket of water and poured it over the affected area.

"When any of you enters the mosque, let him say: 'Allahumma iftah li abwāba rahmatik' (O Allah, open for me the gates of Your mercy). And when he leaves, let him say: 'Allahumma inni as’aluka min fadlik' (O Allah, I ask You of Your bounty)."

'Uthmān ibn' Affān (may Allah be pleased with him) wanted to build the mosque, but the people did not like this idea, and they wished that he should keep it as it was. Thereupon, he said: "I heard the Messenger of Allah (may Allah's peace and blessings be upon him) say: 'He who builds a mosque for Allah, Allah will build for him the like of it in Paradise.'"

"When anyone of you enters the mosque, let him offer two Rak‘ahs before he sits down."

The Prophet (ﷺ), when he performed the Fajr prayer, would remain seated in his prayer place until the sun rose brightly. He said: He would not leave the spot where he prayed Fajr or the Morning prayer until the sun had risen. When the sun rose, he would stand up. During that time, the people would talk about matters from the pre-Islamic days of ignorance; they would laugh and he would smile.

’Umm Salamah mentioned to the Messenger of Allah (may Allah's peace and blessings be upon him) that she had seen a church in Abyssinia called Māriyah, and she mentioned the images that she had seen therein. The Messenger of Allah (may Allah's peace and blessings be upon him) said: "Those are a people who, when a righteous slave or a righteous man from among them dies, they build a place of worship over his grave and place those images therein. Those are the most evil people in the sight of Allah."