The Story of Khadija's Proposal

There are two versions of the story in my previous classes. There is one version with a very weak chain that Khadija's father was alive at the time and he opposed the marriage. And so he was caused to become drunk and it was made to appear to him or he was convinced that the marriage had taken place. When he became sober again it was too late to say no. The stronger position is that her father was not alive at all. Additionally there is another version which is reported by more books than this one book that mentions this version.