client authentication certificate with ocsp

Client certificate OCSP and OCSP stapling are two different things.

OCSP stapling is a function that allows the client SSL profile to prefetch revocation status of its own certificate and send that information to a client that supports the STATUS_REQUEST TLS extension.

Client certificate OCSP revocation checking is a separate function that allows the BIG-IP to validate the status of a client's certificate. This can be done in an LTM authentication profile, but that feature has been mostly deprecated in favor of APM OCSP.