According to authentic hadiths, Umm al-Mu’minin Hazrat Aisha (RA) was married by her father Hazrat Abu Bakr Siddique (RA) to the Prophet (PBUH) at the age of six, and at the age of nine, he married her. The leave was effected.

صحيح البخاري (5 / 55):
“حدثني فروة بن أبي المغراء، حدثنا علي بن مسهر، عن هشام، عن أبيه، عن عائشة رضي الله عنها، قالت: «تزوجني النبي صلى الله عليه وسلم وأنا بنت ست سنين، فقدمنا المدينة فنزلنا في بني الحارث بن خزرج، فوعكت فتمرق شعري، فوفى جميمة فأتتني أمي أم رومان، وإني لفي أرجوحة، ومعي صواحب لي، فصرخت بي فأتيتها، لاأدري ما تريد بي فأخذت بيدي حتى أوقفتني على باب الدار، وإني لأنهج حتى سكن بعض نفسي، ثم أخذت شيئاً من ماء فمسحت به وجهي ورأسي، ثم أدخلتني الدار، فإذا نسوة من الأنصار في البيت، فقلن على الخير والبركة، وعلى خير طائر، فأسلمتني إليهن، فأصلحن من شأني، فلم يرعني إلا رسول الله صلى الله عليه وسلم ضحى، فأسلمتني إليه، وأنا يومئذ بنت تسع سنين»”.

Translation: There is a hadith on the authority of Hazrat Aisha, who said: I was six years old when I got married to the Prophet, peace and blessings be upon him. got down, then I got a fever (so severe) that my hair started falling out and it reached my ears, then (one day) I was sitting in a swing with some of my friends when my mother Umm Ruman came to me and urged me. called from, I went to him in the situation that I did not know why he had called, he held my hand and made me stand at the door of a house. Then they took some water and rubbed their hands on my face and head, then they let me inside the house and I saw some Ansari women in the room, they said come with blessings and good luck. My mother. referred me to him, then he beautified me, then at the time of Chasht, Hazrat came and he referred me to him, at that time I was nine years old. Only God knows