When Fatimah (Radi'Allahu Anha) reached the age of fifteen, proposals for her marriage began to come from high and responsible families. But the Prophet (Sallallaahu Alayhi Wasallam) remained irresponsive.
Ali (Radi'Allahu Anhu) went and sold his armour to Uthmaan (Radi'Allahu Anhu) for 480
Dirham and presented it to Rasulullah (Sallallaahu Alayhi Wasallam). Bilaal (Radi'Allahu Anhu) was ordered by the Prophet (Sallallaahu Alayhi Wasallam) to bring some perfume and a few other things and Anas (Radi'Allahu Anhu) was sent to call Abu Bakr, Uthmaan, Talhah, Zubayr with some companions from the Ansaar (Radi'Allahu Anhum).

When these men arrived and had taken their seats, the Prophet (Sallallaahu Alayhi Wasallam) recited the Khutbah (sermon) of Nikaah and gave Fatimah (Radi'Allahu Anha) in marriage to Ali (Radi'Allahu Anhu). He announced, "Bear you all witness that I have given my daughter Fatimah in marriage to Ali for 400 Mithqaal of silver and Ali has accepted." He then raised his head and made Dua saying, "O Allah, create love and harmony between these two. Bless them and bestow upon them good children." After the Nikaah, dates were distributed.

When the time came for Fatimah (Radi'Allahu Anha) to go to Ali's (Radi'Allahu Anhu) house, she was sent without any clamour, hue and cry accompanied Umm Ayman (Radi'Allahu Anhu).
After the 'Isha Salaat, the Prophet (Sallallaahu Alayhi Wasallam) went to their house, took
permission and entered. He asked for a basin of water, put his blessed hands into it and
sprinkled it on both Ali (Radi'Allahu Anhu) and Fatimah (Radi'Allahu Anha) and made Dua for them.
The sovereign of both worlds gave his beloved daughter a silver bracelet, two Yemeni sheets, four mattresses, one blanket, one pillow, one cup, one handgrinding mill, one bedstead, a small water skin and a leather pitcher.

In this simple fashion, the wedding of the daughter of the leader of the worlds was solemnised. In following this Sunnah method, a wedding becomes very simple and easy to fulfill.