Apostate prophet looking deeper into an ancient union; sources for Aisha's age?

In answer to the video "10 Reasons to Reject Islam"

None of the narrations saying she was 6 when engaged and 9 when moved with the prophet come from Mecca or Medina and whether from Muslim or Bukhari's sahih books combined, it is the same hadith narrated in multiple ways, which refutes the position that Aisha's age is established by multiple reliable sources.

Even the two hadith in Bukhari claiming that Aisha says her age are attributed to Hisham bin Urwa, so they arent even her own words. It is only in Muslim, in the context of permissibility of marrying young women, that we find two hadith claiming to be Aisha's words. But they all report additional material from Hisham that arent reported in Bukhari.

All such narrations come from Iraq, even those outside sahih Bukhari, and the majority of those are traced to Hisham bin Urwa, Asma's grandson, meaning there is no possibility to verify whether Hisham was involved in those other reports where his name isnt mentioned in the chain, directly or indirectly. So it all goes back to one source ultimately who himself was married to a 9 year old (8). In addition to this obvious bias, he is reported by imam Malik, his student, to have become unreliable in his Iraq period, due to changing, willingly or not, the transmission chain of certain reports going back to his father. But even if we dismiss these reservations and his bias, we would still be confronted to difficulties showing how any attempt at specifically determining Aisha's marriage age is not based upon contradiction-free information.

Asma was 10 years older than Aisha (9). Yet Hisham bin Urwa himself claims Asma lived until 100(10). Asma died in 73H (11). If she was 100 in 73H according to bin Urwa himself then it means she was 27 at the time of Hijra. Consequently Aisha was 17 at the time and 18-19 when she married 1 or 2 years later. Knowing this difficulty to harmonize the records available with bin Urwa's, the historian Imam Adh-Dhahabi tries reducing Asma's age at death in order to make it fit with the reports on Aisha's marriage age

"If this is true (Asma being 10 years older than Aisha), then the age of Asmaa when she passed away should be ninety-one".

For a 17-18 years old to be playing on a swing the day of her wedding with her friends or playing with toys during her marriage isnt an extreme oddity (12). This may be referring to the early period of her marriage. The contention that she played with dolls even after the campaign of Khaybar or Tabuk (13) which would mean around the age of 26 is flawed. The same narration is found in Bukhari and Muslim without the part about the prophet coming from Khaybar or Tabuk, as well as other differences. They have both rejected these parts because they are attributed to Yahya bin Ayyub who was deemed confused in the chain and content of this hadith. Even if one were to accept the passage as true for argument's sake, as well as Aisha's age of marriage at 6years old, then this means she was still playing with dolls after the battle of Khaybar when she was 15-16. Playing with dolls is not an indication of age or stage of physical development.

Public criticism, according to the tradition, was laid at Umar for his trying to marry Ali's daughter, because she was young and Umar was old, almost the same age difference between the Prophet and Aisha. In fact, the traditions record that this was one of the objections of Ali for the union and public criticism had gotten to the point Umar had to defend himself for the move in public. Umar made the point that he only wanted to marry her to affirm his ties with the House of the Prophet. Umar didnt use the precedent of the Prophet marrying Aisha at an alleged young age. This incident, involving the closest companions of the prophet, reveals the same inconsistencies as those noted earlier with the prophet's refusal to marry his daughter to AbuBakr. Also, if it was a norm of Arab culture, then why would he draw the criticism of the city of Medina for such an act?

Further, in the Muwatta which is the representative work on the school of Medina, in the chapter on marrying younger women without asking them, this narration isnt even reported. And you would think, in Medina of all places, the marriage of the Prophet to a young Aisha would serve an evidence for the people of Medina.

Where are the examples to substantiate the point of view that such practice was a norm in Arab culture? An interesting point to re-stress is that not only are there no examples to show how such practice was a norm, but also Urwa, the ultimate source of these traditions regarding Aisha's age, just so happened to have married a 9year old. Besides his poor memory at the time he reported Aisha's age, there is now another reason to seriously doubt his credibility, namely the blatant need to falsify a hadith to serve his interest in justifying an act that far from being the "norm" of the prophet's time, was unacceptable to many including the prophet's own entourage.