Is there any documentation to do Mutual Auth?

Ah, so client certificate authentication? If so, there's a few ways to tackle this:

Starting with the most robust option, Access Policy Manager (APM) module has client cert inspection and revocation checking built right in. Guidance for this is in the APM guides on the support site.

You can also technically do some of this with LTM directly. Guidance on this can be found in the authentication and SSL profile sections of the LTM guides, also on the support site.