$("#form_master").validate({
    rules: {
        categorie: "required"
    }});`

$("#accordion").accordion({ autoHeight: true, navigation: true, });

$("#form_master").validate({
    ignore: [],
    rules: {
        categorie: "required"
    },
    errorPlacement: function (error, element) {
        if (element.is(":radio")) error.appendTo(element.parent().next().next());
    }
});