BibTeX:
@incollection{Various,
  author = {Various},
  title = {A Prisoner’s Cup of Tea},
  booktitle = {bahaistories.com archive},
  url = {https://bahaistories.com/subject/joy},
}

APA:
Various. A Prisoner’s Cup of Tea. In *bahaistories.com archive*.

MLA:
Various. "A Prisoner’s Cup of Tea." *bahaistories.com archive*, n.d..

Chicago:
Various. "A Prisoner’s Cup of Tea." In *bahaistories.com archive*, n.d..