Allah's Messenger (ﷺ) observed Tamattu' in Hajjat-ul-Wada'. He first put on Ihram for 'Umra and then for Hajj. and then offered animal sacrifice. So he drove the sacrificial animals with him from Dhu'l-Hulaifa. Allah's Messenger (ﷺ) commenced Ihram of Umra and thus pronounced Talbiya for 'Umra. and then (put on Ihram for Hajj) and pronounced Talbiya for Hajj. And the people performed Tamattu' in the company of Allah's Messenger (ﷺ). They put on Ihram for Umra (first) and then for Hajj. Some of them had sacrificial animals which they had brought with them, whereas some of them had none to sacrifice. So when Allah's Messenger (ﷺ) came to Mecca, he said to the people: He who amongst you has brought sacrificial animals along with him must not treat as lawful anything which has become unlawful for him till he has completed the Hajj; and he, who amongst you has not brought the sacrificial animals should circumambulate the House, and run between al-Safa' and al-Marwa and clip (his hair) and put off the Ihram, and then again put on the Ihram for Hajj and offer sacrifice of animals. But he who does not find the sacrificial animal, he should observe fast for three days during the Hajj and for seven days when he returns to his family. Allah's Messenger (ﷺ) circumambulated (the House) when he came to Mecca: he first kissed the corner (of the Ka'ba containing the Black Stone), then ran in three circuits out of seven and walked in four circuits. And then when he had finished the circumambulation of the House he observed two rak'ahs of prayer at the Station (of Ibrahim), and then pronounced Salaam (for concluding the rak'ahs), and departed and came to al-Safa' and ran seven times between al-Safa' and al-Marwa. After that he did not treat anything as lawful which had become unlawful till he had completed his Hajj and sacrificed his animal on the day of sacrifice (10th of Dhu'l-Hijja). and then went back quickly (to Mecca) and performed circumambulation of the House (known as tawaf ifada) after which all that was unlawful for him became lawful; and those who had brought the sacrificial animals along with them did as Allah's Messenger (ﷺ) had done
Sahih Muslim Book 15, Hadith 190
Zainab said: I visited Umm Habibah when her father AbuSufyan, died. She asked for some yellow perfume containing saffron (khaluq) or something else. Then she applied it to a girl and touched her cheeks.
She said: I have no need of perfume, but I heard the Messenger of Allah (ﷺ) say: It is not lawful for a woman who believes in Allah and the Last Day to observe mourning for one who has died, more than three nights, except for four months and ten days in the case of a husband.
Zaynab said: I also visited Zaynab, daughter of Jahsh, when her brother died. She asked for some perfume and used it upon herself.
She then said: I have no need of perfume, but I heard the Messenger of Allah (ﷺ) say when he was on the pulpit: It is not lawful for a woman who believes in Allah and the Last Day to observe mourning for one who has died, more than three nights, except for four months and ten days in the case of a husband.
Zaynab said: I heard my mother, Umm Salamah, say: A woman came to the Messenger of Allah (ﷺ) and said: Messenger of Allah, the husband of my daughter has died, and she is suffering from sore eyes; may we put antimony in her eyes?
The Messenger of Allah (ﷺ) said: No. He said this twice or thrice. Each time he said: No. The Messenger of Allah (ﷺ) said: The waiting period is now four months and ten days. In pre-Islamic days one of you used to throw away a piece of dung at the end of a year.
Humayd said: I asked Zaynab: What do you mean by throwing away a piece of dung at the end of a year.
Zaynab replied: When the husband of a woman died, she entered a small cell and put on shabby clothes, not touching perfume or any other thing until a year passed. Then an animal such as donkey or sheep or bird was provided for her. She rubbed herself with it. The animal with which she rubbed herself rarely survived. She then came out and was given a piece of dung which she threw away. She then used perfume or something else which she desired.
Abu Dawud said: The Arabic word "hafsh" means a small cell.
Sunan Abi Dawud Book 13, Hadith 125
"I heard my father say, that he heard his grandfather Al-Harith bin 'Amr, that he met the Messenger of Allah during the Farewell Pilgrimage, when he was atop his slit-eared camel. (He said): 'I said: O Messenger of Allah, May my father and mother be ransomed for you; pray for forgiveness for me. He said: May Allah forgive you (plural). Then I came to him from the other side, hoping that he would supplicate just for me alone, and not them. I said: O Messenger of Allah, pray for forgiveness for me. He said: May Allah forgive you (plural). Then a man among the people said: O Messenger of Allah, (what about) the 'Atirah and Fara'? He said: Whoever wishes to offer and 'Atirah may do so, and whoever does not wish to, may not. Whoever wishes to offer a Fara' may do so, and whoever does not wish to, may not. And with regard to sheep, a sacrifice should be offered. And he clasped between his fingers except for one."'
Sunan an-Nasa'i Book 41, Hadith 5
One day while Allah's Messenger (ﷺ) was sitting with the people, a man came to him walking and said, "O
Allah's Messenger (ﷺ). What is Belief?" The Prophet (ﷺ) said, "Belief is to believe in Allah, His Angels, His
Books, His Apostles, and the meeting with Him, and to believe in the Resurrection." The man asked,
"O Allah's Messenger (ﷺ) What is Islam?" The Prophet (ﷺ) replied, "Islam is to worship Allah and not worship
anything besides Him, to offer prayers perfectly, to pay the (compulsory) charity i.e. Zakat and to fast
the month of Ramadan." The man again asked, "O Allah's Messenger (ﷺ) What is Ihsan (i.e. perfection or
Benevolence)?" The Prophet (ﷺ) said, "Ihsan is to worship Allah as if you see Him, and if you do not
achieve this state of devotion, then (take it for granted that) Allah sees you." The man further asked,
"O Allah's Messenger (ﷺ) When will the Hour be established?"
The Prophet (ﷺ) replied, "The one who is asked about it does not know more than the questioner does, but
I will describe to you its portents. When the lady slave gives birth to her mistress, that will be of its
portents; when the bare-footed naked people become the chiefs of the people, that will be of its
portents. The Hour is one of five things which nobody knows except Allah. Verily, the knowledge of
the Hour is with Allah (alone). He sends down the rain, and knows that which is in the wombs."
(31.34) Then the man left. The Prophet (ﷺ) said, "Call him back to me." They went to call him back but
could not see him. The Prophet (ﷺ) said, "That was Gabriel who came to teach the people their religion."
(See Hadith No. 47 Vol 1)
Sahih al-Bukhari Book 65, Hadith 299