BibTeX:
@incollection{Various,
  author = {Various},
  title = {In the early days of the Faith in Isfahan, when I began to study the},
  booktitle = {bahaistories.com archive},
  url = {https://bahaistories.com/subject/doubts},
}

APA:
Various. In the early days of the Faith in Isfahan, when I began to study the. In *bahaistories.com archive*.

MLA:
Various. "In the early days of the Faith in Isfahan, when I began to study the." *bahaistories.com archive*, n.d..

Chicago:
Various. "In the early days of the Faith in Isfahan, when I began to study the." In *bahaistories.com archive*, n.d..