Is there any way to find Which upstream project triggered a GitLab CI downstream pipeline?

I have a GitLab project pipeline that triggers a downstream pipeline, GitLab multi-project pipelines.

image: docker

    project: my-group/docs
    branch: feat/my-feature-branch

Is there a way for the triggered pipeline in my-group/docs to find out where it was triggered from? I checked the predefined CI variables but none seems to carry this information.