Is the delete()-method of the query builder firing an deleting-event?

Hello everybody,

given the situation where I have a model with a relation like this:

    /**
     * @return MorphMany
     */
    public function notifications(): MorphMany
    {

        return $this->morphMany(Notification::class, 'notifiable')->orderBy(
            'created_at',
            'desc'
        );
    }

Now I'd like to delete all related notifications and, this is important, trigger the deleting-event on each of the deleted items, can I do this like this:

$user->notifications()->delete();

or do I have to do

$user->notifications->each(function($notification){
  $notification->delete();
});

The second example makes use of src/Illuminate/Database/Eloquent/Model.php's delete-method, which contains $this->fireModelEvent('deleting') - the first example makes use of the query builder, so I guess the deleting-event will not be fired.

Is my assumption correct?