Abu Sa'id reported God’s Messenger as saying, “The whole earth is a mosque, with the exception of a graveyard and a bath.” Abu Dawud, Tirmidhi and Darimi transmitted it.

Ibn ‘Umar said that there were seven places in which God’s Messenger forbade people to pray: a dunghill, a slaughterhouse, a graveyard, the middle of the road, a bath, places where camels kneel to drink, and on the roof of God’s House. Tirmidhi and Ibn Majah transmitted it.

Abu Huraira reported God’s Messenger as saying, “Pray in sheep-folds, but not where camels kneel to drink.” Tirmidhi transmitted it.

Ibn ‘Abbas said that God’s Messenger cursed women who visited graves, people who put mosques there and those who lit lamps there. Abu Dawud, Tirmidhi and Nasa’i transmitted it.

Abu Umama said that a Jewish doctor asked the Prophet (ﷺ) what places were best, but he did not answer his question, saying, “I shall say nothing till Gabriel comes.” So he remained silent, and when Gabriel came he asked him, but he replied, “The one who is asked knows no more than the one who asks, but I shall ask my Lord.” Later Gabriel said, “Muhammad, I approached my Lord nearer than I have ever come before.” When Muhammad asked about that, he replied, “Between Him and me there were seventy thousand veils of light, and He said that the worst places were their markets and the best their mosques.”* *The source of the tradition is not given in the text. The editor of the Damascus edition says it comes rightly from Ibn Hibban from Ibn ‘Umar.

Abu Huraira said that he heard God’s Messenger say, “If anyone comes to this mosque of mine, coming only for some good which he will learn or teach, he ranks a mujahid in God’s path; but if anyone comes for some other purpose, he ranks as a man who looks at another’s property.” Ibn Majah and Baihaqi, in Shu'ab al-iman, transmitted it.

Al-Hasan reported in mursal form that God's Messenger said, “A time is coming when people will talk in their mosques about their worldly affairs, so do not sit with them, for God has nothing to do with them.” Baihaqi transmitted it in Shu'ab al-iman.

As-Sa'ib b. Yazid said that when he was sleeping in the mosque a man threw a pebble at him, and when he looked he saw that it was ‘Umar b. al-Khattab, who said, “Go and bring me these two men.” He brought them and ‘Umar asked them what tribe they belonged to, or what place they came from. On their replying that they belonged to at-Ta’if, he said, “If you had belonged to Medina I would have given you a beating for raising your voices in the mosque of God’s Messenger. Bukhari transmitted it.

Malik said that ‘Umar built a courtyard called al-Butaiha’ in the neighbourhood of the mosque and said, “If anyone wants to make a noise, or recite poetry, or raise his voice, he must go out to this courtyard.” He transmitted it in al-Muwatta'.

Anas said that the Prophet (ﷺ) saw some mucus in the direction of the qibla and his displeasure was apparent in his face, so he got up, scraped it with his hand and said, “When one of you gets up to pray, he is holding intimate converse only with his Lord, and his Lord is between him and the qibla, so none of you must spit in the direction of the qibla, but towards his left side, or under his foot.” Then he took the end of his cloak, spat in it, folded it up and said, “Or he may do thus.” Bukhari transmitted it.

As-Sa'ib b. Khallad, who was one of the Prophet's companions, said: A man led some people in prayer and spat in the direction of the qibla. Having seen this, God’s Messenger said to the people at the end of the prayer, “He must not lead you in prayer.” The man wanted to lead them in prayer some time afterwards, but they prevented him and told him what God's Messenger had said. He mentioned that to God’s Messenger, who replied, “Yes.” And I think he added, “You have harmed God and His Messenger.’’ Abu Dawud transmitted it.

‘Abdallah b. ‘Amr b. al-‘As said that God’s Messenger used to say on entering the mosque, “I seek refuge in God the mighty, in His noble being, and in His power which is from everlasting from the accursed devil.” He said that when the devil heard that he said, “He is protected from me for the rest of the day.” Abu Dawud transmitted it.

‘Ata’ b. Yasar reported God’s Messenger as saying, “O God, do not let my grave become an idol which is worshipped. God’s anger is severe against people who take the graves of their prophets as mosques.” Malik transmitted it in mursal form.

Mu'adh b. Jabal said that the Prophet (ﷺ) used to like to pray in al-hitan*. One of its transmitters says that it means gardens. * I have given the Arabic word because it is explained in the text. Why it should need to be explained is not clear. Tirmidhi transmitted it and said, “This is a gharib tradition which we know only among the traditions of al-Hasan b. Abu Ja'far whom Yahya b. Sa'id and others have declared to be weak.”

He said that he heard God’s Messenger say, “If anyone prays in a single garment he should cross the two ends.” Bukhari transmitted it.

Anas said that ‘A’isha had a figured curtain with which she secluded the side of her house, but the Prophet (ﷺ) said to her, “Remove this figured curtain of yours from us, for its pictures keep interfering with my prayer.” Bukhari transmitted it.

Salama b. al-Akwa‘said that he told God’s Messenger he was a man who went out hunting, and asked whether he might pray in a single shirt. He replied, “Yes, but fasten it, even if it should be with a thorn.” Abu Dawud transmitted it and Nasa’i transmitted something similar.

Abu Huraira said that while a man was praying letting his lower garment trail, God’s Messenger said to him, “Go and perform ablution.” After he had gone to perform ablution and returned a man asked God’s Messenger why he had ordered him to perform ablution, and he said “He was praying with his lower garment trailing, and God does not accept the prayer of a man who lets his lower garment trail.” Abu Dawud transmitted it.

Umm Salama said that she asked God's Messenger whether a woman might pray in a shift and veil without wearing a lower garment. He replied, “If the shift is ample and covers the surface of her feet.” Abu Dawud transmitted it and he mentioned a number who did not trace it beyond Umm Salama.

Abu Huraira said that God’s Messenger forbade trailing garments during prayer and that a man should cover his mouth. Abu Dawud and Tirmidhi transmitted it.