My non-cooperative memory won't dish up any first line that sold a story to me. I'm inclined to believe there hasn't been one.
I'm familiar enough with the concept, but for me it's been a page, or at least a paragraph that demonstrated to me I was in for the duration from the git-go.
There've been so many books that started out lackluster which proved themselves by the end, that I've come to recognize that not everyone is equally capable in beginning, carrying, or ending a story.
Not all superior stories, in my view, are uniformly superior.