Authors:

And if anyone knows anything about anything," said Bear to himself, "it's Owl who knows something about something," he said, "or my name's not Winnie-the-Pooh," he said. "which it is," he added. "so there you are.

A. A. Milne (2012). “Winnie-the-Pooh”, p.41, Egmont UK
And if anyone knows anything about anything, said Bear to himself, it's Owl who knows something about something, he said, or my name's not Winnie-the-Pooh, he said. which it is, he added. so there you are.