How to display messages from jQuery Validate plugin inside of Tooltipster tooltips?

I'd like to use the Tooltipster plugin to display form errors generated by the jQuery Validate plugin.

jQuery for Validate plugin:

$(document).ready(function () {

    $('#myform').validate({ // initialize jQuery Validate
        // other options,
        rules: {
            field1: {
                required: true,
                email: true
            },
            field2: {
                required: true,
                minlength: 5
            }
        }
    });

});

jQuery for Tooltipster plugin:

$(document).ready(function () {

    $('.tooltip').tooltipster({ /* options */ });  // initialize tooltipster

});

HTML:

<form id="myform">
    <input type="text" name="field1" />
    <input type="text" name="field2" />
    <br/>
    <input type="submit" />
</form>

How would I integrate the usage of these two jQuery plugins so that validation errors appear inside the tooltips?