BibTeX:
@incollection{Various,
  author = {Various},
  title = {Mírzá Abu'l-Faḍl and the Kitáb-i-Íqán},
  booktitle = {Baha'i Stories Blog},
  url = {https://bahaistories.blogspot.com/2015/01/an-example-of-not-to-read-word-of-god.html},
}

APA:
Various. Mírzá Abu'l-Faḍl and the Kitáb-i-Íqán. In *Baha'i Stories Blog*.

MLA:
Various. "Mírzá Abu'l-Faḍl and the Kitáb-i-Íqán." *Baha'i Stories Blog*, n.d..

Chicago:
Various. "Mírzá Abu'l-Faḍl and the Kitáb-i-Íqán." In *Baha'i Stories Blog*, n.d..