allo/app/Model/Question.php

<?php

namespace App\Model;

use Jenssegers\Mongodb\Eloquent\Model as Eloquent;
use Jenssegers\Mongodb\Eloquent\SoftDeletes;

class Question extends Eloquent {
    //

    use SoftDeletes;
    
	protected $connection = 'mongodb';
    protected $collection = 'questions';
}