<div class="row">
            <div class="col-md-6">
                <div class="form-group">
                    <label> <span>Amount to Player</span></label>
                    <input name="AmountToHorse" type="text" class="form-control">
                </div>
            </div>
            <div class="col-md-6">
                <div class="form-group">
                    <label> <span>Amount to Stable</span></label>
                    <input name="AmountToStable" type="text" class="form-control">
                </div>
            </div>
        </div>

$('#reloadForm').validate({
                        rules: {

                            AmountToHorse: {
                                required: true,
                                number: true
                            },
                            AmountToStable: {
                                required: true,
                                number: true
                            },
                        }
                    });

$(document).ready(function () {

    $.validator.addMethod('onlyOne', function(value, element, param) {
        return this.optional(element) || $('[name="' + param[0] + '"]').is(':blank');
    }, "Please fill out only one of these fields");

    $('#myform').validate({
        rules: {
            foo: {
                onlyOne: ["bar"]
            },
            bar: {
                onlyOne: ["foo"]
            }
        }
    });

});