BibTeX:
@incollection{Various,
  author = {Various},
  title = {The Two Envoys of the Mujtahid},
  booktitle = {bahaistories.com archive},
  url = {https://bahaistories.com/subject/crisis-and-victory-discrediting-bahaullah},
}

APA:
Various. The Two Envoys of the Mujtahid. In *bahaistories.com archive*.

MLA:
Various. "The Two Envoys of the Mujtahid." *bahaistories.com archive*, n.d..

Chicago:
Various. "The Two Envoys of the Mujtahid." In *bahaistories.com archive*, n.d..