BibTeX:
@incollection{Various,
  author = {Various},
  title = {Shortly before leaving Denver, someone asked Him about eating meat},
  booktitle = {bahaistories.com archive},
  url = {https://bahaistories.com/subject/diet},
}

APA:
Various. Shortly before leaving Denver, someone asked Him about eating meat. In *bahaistories.com archive*.

MLA:
Various. "Shortly before leaving Denver, someone asked Him about eating meat." *bahaistories.com archive*, n.d..

Chicago:
Various. "Shortly before leaving Denver, someone asked Him about eating meat." In *bahaistories.com archive*, n.d..