You can add a saylink like this (untested):
Code:
sub soulbinder_say {
my $bind_your_soul = quest::saylink("bind your soul");
my $text = shift;
if($text=~/hail/i){
quest::say("Greetings ${name} . When a hero of our world is slain their soul returns to the place it was last bound and the body is reincarnated. As a member of the Order of Eternity it is my duty to " . $bind_your_soul . " to this location if that is your wish.");
} elsif($text=~/bind your soul/i) {
quest::say("Binding your soul. You will return here when you die.");
quest::selfcast(2049);
}
}