from a man among his people, who said: "I went looking for the Prophet (ﷺ) but I was not able to find him. So I sat down, and then I saw a group of people, and he was among them, but I did not recognize him. He was settling some matter between them so when he was finished, some of them stood up with him and they were saying: 'O Messenger of Allah.' When I saw that, I said: "'Alaikas-Salam (upon you be peace) O Messenger of Allah! 'Alaikas-Salam (upon you be peace) O Messenger of Allah! 'Alaikas-Salam (upon you be peace) O Messenger of Allah!' He replied: 'Indeed "'Alaikas-Salam (upon you be peace)" is the greeting for the dead.' Then he came toward me and said: 'When a man meets his Muslim brother then he should say: "As-Salamu 'Alaikum Wa Rahmatullahi Wa Barakatuh (peace be upon you, and the mercy and blessings of Allah)." Then the Prophet (ﷺ) responded to my greeting, he said: 'And may Allah's mercy be upon you, and may Allah's mercy be upon you, and may Allah's mercy be upon you.'"
Jami` at-Tirmidhi Book 42, Hadith 34
from Ma'qil bin Yasar that he married his sister to a man among the Muslims during the time of the Messenger of Allah (ﷺ). She remained with him as long as she did, then he divorced her once without taking her back until her 'Iddah elapsed, but they desired each other again. He (Ma'qil) said to him: 'You ingrate! I honored you by marrying her to you, then you divorced her. By Allah! She will never be returned to you again.' Allah knew of his heed for her and her need for a husband, so Allah, Blessed and Most High, revealed: 'And when you have divorced women and they have fulfilled the term of their prescribed period...' up to His saying: '... and you do not know (2:232).' So when Ma'qil heard that he said: 'I heard my Lord and obey.' Then he called for him and said: 'I marry you, and honor you.'"
This Hadith is Hasan Sahih. It has been reported through other routes from AlHasan, and that is reported from Hasan is Gharib. And in this Hadtth, there is proof that marriage is not allowed without a Wali, because Ma'qil bin Yasãr's sister was not a virgin, so if the matter was up to her, not her Wali, then she could have married herself, and she would have had no need for Ma'qil bin Yasãr to act as the Wali for her. And Allah only addressed the Wali in this Ayah, saying: Do not prevent them from marrying their (former) husbands. - so in this Ayah is the evidence that the authority is with the Wali in marrying (women) with their consent.
Jami` at-Tirmidhi Book 47, Hadith 33
The wife of the Prophet (ﷺ) that she went to Allah's Messenger (ﷺ) while he was in I`tikaf (staying in the
mosque) during the last ten nights of the month of Ramadan. She spoke to him for an hour (a while) at
night and then she got up to return home. The Prophet (ﷺ) got up to accompany her, and when they
reached the gate of the mosque opposite the dwelling place of Um Salama, the wife of the Prophet,
two Ansari men passed by, and greeting Allah's Messenger (ﷺ) , they quickly went ahead. Allah's Messenger (ﷺ)
said to them, "Do not be in a hurry She is Safiya, the daughter of Huyai." They said, "Subhan Allah!
O Allah's Messenger (ﷺ) (how dare we suspect you)." That was a great thing for both of them. The Prophet (ﷺ)
then said, "Satan runs in the body of Adam's son (i.e. man) as his blood circulates in it, and I was
afraid that he (Satan) might insert an evil thought in your hearts."
Sahih al-Bukhari Book 78, Hadith 243