The Prophet (saws) said: The best number of companions is four, the best number in expeditions four hundred, and the best number in armies four thousand; and twelve thousand will not be overcome through smallness of numbers.

Abu Dawud said: What is correct is that this tradition is mursal (i.e. the link of the Companion is missing).

A hadith like this has been narrated on the authority of Humaid with the same chain of transmitters.

In the lifetime of the Prophet there was no wall around the Ka`ba and the people used to pray around the Ka`ba till `Umar became the Caliph and he built the wall around it. 'Ubaidullah further said, "Its wall was low, so Ibn Az-Zubair built it."

Yahya related to me from Malik from his uncle Abu Suhayl ibn Malik that his father said, "I used to see a carpet belonging to Aqil ibn Abi Talib spread out on the day of jumua up to the west wall of the mosque. When the shadow of the wall covered the whole carpet, Umar ibn al-Khattab would come out and pray the jumua prayer."

Malik, Abu Suhayl's father, added, "We would then return after the jumua prayer and take our midday sleep."

The most beloved names to `Ali was Abu Turab, and he used to be pleased when we called him by it, for none named him Abu Turab (for the first time), but the Prophet. Once `Ali got angry with (his wife) Fatima, and went out (of his house) and slept near a wall in the mosque. The Prophet came searching for him, and someone said, "He is there, Lying near the wall." The Prophet came to him while his (`Ali's) back was covered with dust. The Prophet started removing the dust from his back, saying, "Get up, O Abu Turab!"

The Prophet said, "Allah has made an opening in the wall of the Gog and Magog (people) like this, and he made with his hand (with the help of his fingers).

The Prophet said, "A faithful believer to a faithful believer is like the bricks of a wall, enforcing each other." While (saying that) the Prophet clasped his hands, by interlacing his fingers.

The Prophet used to invoke Allah, saying, "Allahumma ighfirli khati'ati wa jahli wa israfi fi `Amri, wa ma anta a-'lamu bihi minni. Allahumma ighfirli hazali wa jiddi wa khata'i wa amdi, wa kullu dhalika 'indi."

[Abu Dawud and At-Tirmidhi].

The Prophet used to invoke Allah with the following invocation: 'Rabbi-ghfir-li Khati 'ati wa jahli wa israfi fi `Amri kullihi, wa ma anta a'lamu bihi minni. Allahumma ighfirli khatayaya wa 'amdi, wa jahli wa jiddi, wa kullu dhalika'indi. Allahumma ighrifli ma qaddamtu wa ma akhartu wa ma asrartu wa ma a'lantu. Anta-l-muqaddimu wa anta-l-mu'akh-khiru, wa anta 'ala kulli shai'in qadir.'

Allah's Apostle forbade drinking directly from the mouth of a water skin or other leather containers. and forbade preventing one's neighbor from fixing a peg in (the wall of) one's house.

The Prophet saw sputum on (the wall of) the mosque in the direction of the Qibla and scraped it off with gravel. Then he forbade Spitting in front or on the right, but allowed it on one's left or under one's left foot.

The Messenger of Allah (saws) came to us when I was a boy among the boys. He saluted us and took me by my hand. He then sent me with some message. He himself sat in the shadow of a wall, or he said: near a wall until I returned to him.

Abu Huraira said, "Allah's Apostle said, 'No one should prevent his neighbor from fixing a wooden peg in his wall." Abu Huraira said (to his companions), "Why do I find you averse to it? By Allah, I certainly will narrate it to you."

The people said, "O Allah's Apostle ! How may we send Salat on you?" He said, "Say: Allahumma Salli 'ala- Muhammadin wa azwajihi wa dhurriyyatihi kama sal-laita 'ala `Ali Ibrahim; wa barik 'ala Muhammadin wa azwajihi wa dhurriyyatihi kamabarakta 'ala `Ali Ibrahim innaka hamidun majid."

Allah's Apostle said, "Both of them (Moses and Al-Khadir) proceeded on till they reached a wall which was about to fall." Sa`d said [?? or Sa`id], "(Al-Khadir pointed) with his hands (towards the wall) and then raised his hands and the wall became straightened up." Ya`la said, "I think Sa`id [?? or Sa`d] said, 'He (Khadir) passed his hand over it and it was straightened up." (Moses said to him), "if you had wanted, you could have taken wages for it." Sa`id [?? or Sa`d] said, "Wages with which to buy food . "

Allah's Apostle saw some expectoration on the wall of the mosque; he took gravel and scraped it off and said, "If anyone of you wanted to spit, he should neither spit in front of him nor on his right but could spit either on his left or under his left foot."

The Prophet (saws) said: If anyone surrounds a land with a wall, it belongs to him.

Allah's Apostle saw some expectoration on the wall of the mosque; he took gravel and scraped it off and said, "If anyone of you wanted to spit he should neither spit in front of him nor on his right but he could spit either on his left or under his left foot."

The distance between the wall of the mosque and the pulpit was hardly enough for a sheep to pass through.

The Prophet came from the direction of Bir Jamal. A man met him and greeted him. But he did not return back the greeting till he went to a (mud) wall and wiped his face and hands with its dust (performed Tayammum) and then returned back the greeting.

We said, "O Allah's Apostle This is (i.e. we know) the greeting to you; will you tell us how to send Salat on you?" He said, "Say: 'Allahumma Salli 'ala Muhammadin `Abdika wa rasulika kama sal-laita 'ala Ibrahima wa barik 'ala Muhammadin wa all Muhammadin kama barakta 'ala Ibrahima wa `Ali Ibrahim."

The distance between the pulpit and the wall of the mosque on the side of the Qibla was just sufficient for a sheep to pass through.

Allah's Apostle used to invoke (Allah): "Allahumma ini a`udhu bika min 'adhabi-l-Qabr, wa min 'adhabi-nnar, wa min fitnati-l-mahya wa-lmamat, wa min fitnati-l-masih ad-dajjal. (O Allah! I seek refuge with you from the punishment in the grave and from the punishment in the Hell fire and from the afflictions of life and death, and the afflictions of Al-Masih Ad-Dajjal."

Abu Dawud said:This is the tradition of Ibn Abi Khalaf is more perfect.

The distance between the Musalla of Allah's Apostle and the wall was just sufficient for a sheep to pass through .

A man passed by the Prophet (sal Allaahu alayhi wa sallam ) while he was urinating, and saluted him. The Prophet (sal Allaahu alayhi wa sallam) did not return the salutation to him.

Abu Dawud said : It is narrated on the authority of Ibn 'Umar that the Prophet (sal Allaahu alayhi wa sallam) performed tayammum, then he returned the salutation to the man.

We said, "O Allah's Apostle! (We know) this greeting (to you) but how shall we invoke Allah for you?" He said, "Say! Allahumma salli ala Muhammadin `Abdika wa rasulika kama- sallaita 'ala all Ibrahim wa barik ala Muhammadin wa'ala all Muhammadin kama barakta 'ala all Ibrahim.' Al-Laith said: 'Ala Muhammadin wa 'ala all Muhammadin kama barakta ala all Ibrahim.

Narrated Ibn Abi Hazim and Ad-Darawardi:

Yazid said, "Kama sallaita ala Ibrahima wa barik 'ala Muhammad in wa all Muhammadin kama barakta 'ala Abrahima wa all Ibrahim."

When one of you meets his brother, he should salute him, then if he meets him again after a tree, wall or stone has come between them, he should also salute him.

Mu'awiyah said: 'Abd al-Wahhab b. Bakht transmitted a similar tradition to me from Abu al-Zinad, from al-A'raj, from Abu Hurairah, from the Messenger of Allah (saws).

Malik related to me from Ibn Shihab from al-Araj from Abu Hurayra that the Messenger of Allah, may Allah bless him and grant him peace, said, "No one should prevent his neighbour from fixing a wooden peg in his wall." Then Abu Hurayra said, "Why do I see you turning away from it? By Allah! I shall keep on at you about it."

Ibn Umar reported that the Messenger of Allah (may peace be upon him) saw sputum sticking to the Qibla wall of the mosque, the rest of the hadith is the same.