The Prophet wrote the [marriage contract] with Aisha while she was six years old and consummated his marriage with her while she was nine years old a… - Aisha

Narrated Aisha, Ummul Mu'minin: "The Apostle of Allah (peace be upon him) married me when I was seven or six. When we came to Medina, some women came. according to Bishr's version: Umm Ruman came to me when I was swinging. They took me, made me prepared and decorated me. I was then brought to the Apostle of Allah (peace be upon him), and he took up cohabitation with me when I was nine. She halted me at the door, and I burst into laughter."

.. He (Muhammad b. Qais) then reported that it was 'A'isha who had narrated this: Should I not narrate to you about myself and about the Messenger of Allah (may peace be upon him)? We said: Yes. She said: When it was my turn for Allah's Messenger (may peace be upon him) to spend the night with me, he turned his side, put on his mantle and took off his shoes and placed them near his feet, and spread the corner of his shawl on his bed and then lay down till he thought that I had gone to sleep. He took hold of his mantle slowly and put on the shoes slowly, and opened the door and went out and then closed it lightly. I covered my head, put on my veil and tightened my waist wrapper, and then went out following his steps till he reached Baqi'. He stood there and he stood for a long time. He then lifted his hands three times, and then returned and I also returned. He hastened his steps and I also hastened my steps. He ran and I too ran. He came (to the house) and I also came (to the house). I, however, preceded him and I entered (the house), and as I lay down in the bed, he (the Holy Prophet) entered the (house), and said: Why is it, O 'A'isha, that you are out of breath? I said: There is nothing. He said: Tell me or the Subtle and the Aware would inform me. I said: Messenger of Allah, may my father and mother be ransom for you, and then I told him (the whole story). He said: Was it the darkness (of your shadow) that I saw in front of me? I said: Yes. He struck me on the chest which caused me pain, and then said: Did you think that Allah and His Apostle would deal unjustly with you?..."

Narrated Aisha: Whenever Allah's Apostle wanted to go on a journey, he would draw lots as to which of his wives would accompany him. He would take her whose name came out. He used to fix for each of them a day and a night. But Sauda bint Zam'a gave up her (turn) day and night to 'Aisha, the wife of the Prophet in order to seek the pleasure of Allah's Apostle (by that action).