Ali Sina does not invent Hadiths or facts. He gives references unlike you. Where is the proof that Muhammad didn't marry ten years after Khadija? If you say something then prove it. How come no Muslim in the world has been able to defeat Ali Sina in a debate? He has challenged Muslims to debunk his book, he will even give a reward of 50k but no one accepted it.
Muhammad was lustful man who married immediately after Khadijas death. He married a chil of 9 three years later too and had several concubines.
Sahih Muslim Book 008, Number 3310:
'A'isha (Allah be pleased with her) reported: Allah's Apostle (may peace be upon him) married me when I was six years old, and I was admitted to his house when I was nine years old.
Sahih Bukhari Volume 7, Book 62, Number 64
Narrated 'Aisha:
that the Prophet married her when she was six years old and he consummated his marriage when she was nine years old, and then she remained with him for nine years (i.e., till his death).
Sahih Bukhari Volume 7, Book 62, Number 65
Narrated 'Aisha:
that the Prophet married her when she was six years old and he consummated his marriage when she was nine years old. Hisham said: I have been informed that 'Aisha remained with the Prophet for nine years (i.e. till his death)." what you know of the Quran (by heart)'
Sahih Bukhari Volume 7, Book 62, Number 88
Narrated 'Ursa:
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 and she remained with him for nine years (i.e. till his death).
Sahih Bukhari 5.236.
Narrated Hisham's father:
Khadija died three years before the Prophet departed to Medina. He stayed there for two years or so and then he married 'Aisha when she was a girl of six years of age, and he consumed that marriage when she was nine years old.
Sahih Bukhari 5.234
Narrated Aisha:
The Prophet engaged me when I was a girl of six (years). We went to Medina and stayed at the home of Bani-al-Harith bin Khazraj. Then I got ill and my hair fell down. Later on my hair grew (again) and my mother, Um Ruman, came to me while I was playing in a swing with some of my girl friends. She called me, and I went to her, not knowing what she wanted to do to me. She caught me by the hand and made me stand at the door of the house. I was breathless then, and when my breathing became Allright, she took some water and rubbed my face and head with it. Then she took me into the house. There in the house I saw some Ansari women who said, "Best wishes and Allah's Blessing and a good luck." Then she entrusted me to them and they prepared me (for the marriage). Unexpectedly Allah's Apostle came to me in the forenoon and my mother handed me over to him, and at that time I was a girl of nine years of age.
Sunan Abu-Dawud Book 41, Number 4915, also Number 4916 and Number 4917
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.
Sahih Bukhari Volume 7, Book 62, Number 90
Narrated Aisha:
When the Prophet married me, my mother came to me and made me enter the house (of the Prophet) and nothing surprised me but the coming of Allah's Apostle to me in the forenoon.