BibTeX:
@incollection{Various,
  author = {Various},
  title = {How Mírzá Buzurg Received His Title},
  booktitle = {Baha'i Stories Blog},
  url = {https://bahaistories.blogspot.com/2016/07/the-story-of-how-bahaullahs-father.html},
}

APA:
Various. How Mírzá Buzurg Received His Title. In *Baha'i Stories Blog*.

MLA:
Various. "How Mírzá Buzurg Received His Title." *Baha'i Stories Blog*, n.d..

Chicago:
Various. "How Mírzá Buzurg Received His Title." In *Baha'i Stories Blog*, n.d..