301 RESPONSE AND REDIRECT

What are the conditions u want to use this iRule for? 

For a simple 301 Redirect you could use: 

when HTTP_REQUEST {
    HTTP::respond 301 Location https://abc.bank.ca "Connection" "Close"
}

This will redirect all traffic on the virtual server towards the domain abc.bank.ca. Of course you could expand on this by keeping for example the URI elements attached.