BibTeX:
@incollection{Various,
  author = {Various},
  title = {Ṭáhirih Unveiled at Badasht},
  booktitle = {Baha'i Stories Blog},
  url = {https://bahaistories.blogspot.com/2015/06/the-blast-of-trumpet-amazing-way-in.html},
}

APA:
Various. Ṭáhirih Unveiled at Badasht. In *Baha'i Stories Blog*.

MLA:
Various. "Ṭáhirih Unveiled at Badasht." *Baha'i Stories Blog*, n.d..

Chicago:
Various. "Ṭáhirih Unveiled at Badasht." In *Baha'i Stories Blog*, n.d..