Investigateislam claims that the prophet Muhammed had sex with his aunt Hawla bint Hakim خولة بنت حكيم. His quotes a hadith from Musnad Ahmad, and he then misquotes another hadith from sahih Bukhari. Here is the link to his video
www.youtube.com/watch?v=PzO3HL7nfSc
The Authentic hadith he quotes from is Sahih Bukhari, hadith number 4721
Response Sahih Bukhari
Hawla bint Hakim spoken of in the hadith, is not the prophets Aunt. The same page that investigateislam (Christian prince) quoted proves this. The hadith in the link below is what investigateislam showed on his video, but he only shows the top part of the page, he doesnt show the rest of the information on the page. Hawla bint Hakim & her mother are both from a completely different tribe to the prophet Muhammed. The same page says the following in Arabic
قوله بنت حكيم
أي ابن أمية بن الأوقص السلمية , وكانت زوج عثمان بن مظعون , وهي من السابقات إلى الإسلام , وأمها من بني أمية
http://hadith.al-islam.com/Display/Display.asp?hnum=4721&doc=0&IMAGE=%DA%D1%D6+%C7%E1%CD%CF%ED%CB
Notice the parts i put in red, It says she was from the tribe of Banu Umya, & so was her mother was too. The prophet Muhammed was from the tribe of Banu Hashim بنو هاشم So she was not his Aunt
Response Musnad Ahmad
The Hadith in Musnad Ahmad, is not authentic, the two most reliable hadith collections are Sahih Bukhari and Sahih Muslim, all other collections are corrupted and have many weak and false hadiths within them. These are not accepted by scholors of islam or by the majority of muslims, so it doesn’t even need an explanation as it is unathentic