How to find (many) documents with the same property in Elasticsearch?

I have an index with "event" documents. Each event has a property called "receiptId". Several events can have the same receiptId.

I need to find a receiptId with at least 1000 events - how can I write some kind of query for that? I use Sense.

I'm a beginner with Elasticsearch and I've tried to read their documentation, but can't seem to figure it out. I hope my question is clear enough.

You can use a terms aggregation with the min_doc_count setting, like this:

POST events/_search
{
   "size": 0,
   "aggs": {
      "receipts": {
         "terms": {
            "field": "receiptId",
            "min_doc_count": 1000
         }
      }
   }
}