Sunan An-Nasa'i, Hadith 3218 - The Book of Marriage

promised the help of Allah: The Mukatab who wants to buy his freedom, the one who gets married seeking to keep himself chaste, and the Mujahid who fights in the cause of Allah.
http://www.gowister.com/hadith/nasai/3229/

Sunan An-Nasa'i, Hadith 3239 - The Book of Marriage

a man should not offer more for something that has already been bought by his brother, no one should propose marriage to a woman when someone else has already proposed to her,
http://www.gowister.com/hadith/nasai/3250/

Sunan An-Nasa'i, Hadith 3243 - The Book of Marriage

been bought by his brother, or for a man to propose marriage to a woman when someone else has already proposed to her, unless the previous suitor gave up the idea or gave him permission.
http://www.gowister.com/hadith/nasai/3254/

Sunan An-Nasa'i, Hadith 3248 - The Book of Marriage

Chapter: A Man Offering His Daughter In Marriage To Someone Whom He Likes - It was narrated that 'Umar said: "Hafsah bint 'Umar became single when (her husband) Khunais -meaning bin Hudhafah- (died).
http://www.gowister.com/hadith/nasai/3259/

Sunan An-Nasa'i, Hadith 3258 - The Book of Marriage

It was narrated from 'Aishah that the Messenger of Allah married her when she was nine and he died when she was eighteen years old. - Grade: Sahih (Darussalam)
http://www.gowister.com/hadith/nasai/3269/

Sunan An-Nasa'i, Hadith 3259 - The Book of Marriage

narrated: "Hafsah bint 'Umar became single when (her husband) Khunais bin Hudhafah As-Sahmi (died). He was one of the Companions of the Prophet, and he died in Al-Madinah.
http://www.gowister.com/hadith/nasai/3270/

Sunan An-Nasa'i, Hadith 3331 - The Book of Marriage

' He said: 'The Messenger of Allah is sending me to a man who has married his father's wife after he died, to strike his neck or kill him.'" - Grade: Sahih (Darussalam)
http://www.gowister.com/hadith/nasai/3342/

Sunan An-Nasa'i, Hadith 3349 - The Book of Marriage

or who died: 'So-and-so was martyred' or 'so and so died as a martyr.' While perhaps he merely overloaded the backside of his beast, or lined his saddle with gold or silver seeking trade.
http://www.gowister.com/hadith/nasai/3360/

Sunan An-Nasa'i, Hadith 3354 - The Book of Marriage

then he died before consummating the marriage with her. 'Abdullah said: 'Ask whether they can find any report about that.' They said: 'O Abu 'Abdur-Rahman, we cannot find any report about that.
http://www.gowister.com/hadith/nasai/3365/

Sunan An-Nasa'i, Hadith 3355 - The Book of Marriage

It was narrated from 'Abdullah that a woman was brought to him who had married a man then he had died without naming any dowry for her and without consummating the marriage with her.
http://www.gowister.com/hadith/nasai/3366/