nshop/lang/pl/auth.php

<?php

return [

    /*
    |--------------------------------------------------------------------------
    | Authentication Language Lines
    |--------------------------------------------------------------------------
    |
    | The following language lines are used during authentication for various
    | messages that we need to display to the user. You are free to modify
    | these language lines according to your application's requirements.
    |
    */

    'failed'   => 'Te dane uwierzytelniające nie pasują do naszych rekordów.',
    'password' => 'Podane hasło jest nieprawidłowe.',
    'throttle' => 'Zbyt wiele prób logowania. Spróbuj ponownie za :seconds sekund.',

];