wal bada i think ur just here to make havoc between religions, I would never ever despise anyones religion or disgrace them, I have read and learnt the teachings of Lord Buddha, And Even practice hes good doings, In ur concern of Prophet Muhammed, in that times, eventhrough it was mentioned that he had married Aisha at year 9, She wasnt an Adult, and he only did that cuz she didnt have anybody or anyone, In that times the only way to adopt persay is to be a relative in some sort, prophet Muhammed did Only good things and like Buddhism says kusal, Akusal, He DID not have any Sexual correspondence AT all. THAT is the 100% truth. and he only commited GOOD DEEDS.