WordPress at a glance
action is not described

password_reset action-hook . WP 1.5.0

Fires before the user's password is reset.

Usage

add_action( 'password_reset', 'action_function_name_3892', 10, 2 );
function action_function_name_3892( $user, $new_pass ){
	// action...
}
$user(object)
The user.
$new_pass(string)
New user password.

Where the hook is called

reset_password()
WC_Shortcode_My_Account::reset_password()
wp-includes/user.php 2317
do_action( 'password_reset', $user, $new_pass );
woocommerce/includes/shortcodes/class-wc-shortcode-my-account.php 352
do_action( 'password_reset', $user, $new_pass );

Where the hook is used (in WP core)

Does not used.