JSFiddle - React, Tailwind, and code Playground

HTML

<script src="http://ajax.aspnetcdn.com/ajax/jquery.validate/1.13.1/jquery.validate.js"></script>
<form id="myform">
    <select name="myselect" id="studyPayerId">
        <option value="">-- wybierz płatnika --</option>
        <option value="1">option 1</option>
    </select>
    <br/>
    <input type="submit" />
</form>

JavaScript

$(document).ready(function () {

    $('#myform').validate();
    
    $('#studyPayerId').rules('add', {
        required: true,
        messages: {
            required: "Proszę wybrać płatnika!"
        }
    });

});