BibTeX:
@incollection{Various,
  author = {Various},
  title = {As an example of the methods of ‘Abdu’l-Bahá’s teaching: My father},
  booktitle = {bahaistories.com archive},
  url = {https://bahaistories.com/subject/detachment},
}

APA:
Various. As an example of the methods of ‘Abdu’l-Bahá’s teaching: My father. In *bahaistories.com archive*.

MLA:
Various. "As an example of the methods of ‘Abdu’l-Bahá’s teaching: My father." *bahaistories.com archive*, n.d..

Chicago:
Various. "As an example of the methods of ‘Abdu’l-Bahá’s teaching: My father." In *bahaistories.com archive*, n.d..