BibTeX:
@incollection{Various,
  author = {Various},
  title = {During the British advance from the south, field batteries were},
  booktitle = {bahaistories.com archive},
  url = {https://bahaistories.com/subject/prayer},
}

APA:
Various. During the British advance from the south, field batteries were. In *bahaistories.com archive*.

MLA:
Various. "During the British advance from the south, field batteries were." *bahaistories.com archive*, n.d..

Chicago:
Various. "During the British advance from the south, field batteries were." In *bahaistories.com archive*, n.d..