Find submission from entry query

[Coysh]

I have a field called submission on my entries which links to form submissions.
I can't work out how to query entries that have a specific submission.. For example:

{% set listing = craft.entries.section('listings').submission(7116).one() ?? null %}

The submission 7116 is saved to a few entries in listings so was expecting something back.

I'm trying to do this in an email notification. I have a custom Event handler that creates an entry on a specific submission (not using Freeform's element integration), so want to refer to the entry that was created in the email.