§ 432 Where and before whom taken.

Here's a plain English summary of this rule:

You can sign a sworn statement, called an affidavit, either inside Oklahoma or outside the state. It doesn't matter where you are when you sign it.

The only requirement is that someone with the legal power to administer oaths must be there to witness it. This could be a notary public, a judge, or another official who has this authority. As long as that person is present and handles the process correctly, the affidavit counts as valid no matter where it was signed.