al-Zuhri ابن شهاب الزهري‎, محمد بن مسلم · The Book of the Masjids

"Whoever prays in the Masjid of the Messenger of Allah (ﷺ) (that is good), for I heard the Messenger of Allah (ﷺ) say: ' One prayer offered there is better than a thousand prayers offered elsewhere, except the Masjid of the Ka'bah.'"

"The Messenger of Allah (ﷺ) used to come to Quba' riding and walking." Quba' is about three miles to the south of the Prophet's Masjid. This area is named after in that district.

"We went out as a delegation to the Prophet (ﷺ); we gave him our oath of allegiance and prayed with him. We told him that in our land there was a church that belonged to us. We asked him to give us the leftovers of his purification (Wudu' water). So he called for water, performed Wudu' and rinsed out his mouth, then he poured it into a vessel and said to us: 'Leave, and when you return to your land,…

"Those people, if there was a righteous man among them, when he died they built a place of worship over his grave and made those images. They will be the most evil of creation before Allah on the Day of Resurrection."

"While we were sitting in the Masjid. The Messenger of Allah (ﷺ) came out to us carrying Umamah bint Abi Al-'As bin Ar-Rabi', whose mother was Zainab, the daughter of the Messenger of Allah (ﷺ). She was a little girl and he was carrying her. The Messenger of Allah (ﷺ) prayed with her on his shoulder, putting her down when he bowed and picking her up again when he stood up, until he completed his prayer."

It was narrated from 'Amr bin Shu'aib, from his father, from his grandfather, that the Prophet (ﷺ) forbade sitting in circles on Friday before Jumu'ah prayer, and buying and selling in the Masjid.

"Alqamah and I entered upon 'Abdullah bin Mas'ud and he said to us: 'Have these people prayed?' We said: 'No.' He said: 'Get up and pray.' So we went to stand behind him, and he put one of us on his right and the other on his left, and he prayed with no Adhan and no Iqamah. When he bowed he interlaced his fingers and placed his hands between his knees, and he said: 'I saw the Messenger of Allah…

"The Messenger of Allah (ﷺ) said: 'Spitting in the Masjid is a sin, and its expiation is to bury it.'"

"I heard Abu Humaid and Abu Usaid say: 'The Messenger of Allah (ﷺ) said: "When any one of you enters the Masjid, let him say: 'Allahumma aftahli abwaba rahmatik (O Allah, open to 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).'"