BibTeX:
@incollection{Various,
  author = {Various},
  title = {Shaykh Hasan Meets the Promised Husayn},
  booktitle = {Baha'i Stories Blog},
  url = {https://bahaistories.blogspot.com/2019/02/1851-karbila-iraq-disciple-of-bab.html},
}

APA:
Various. Shaykh Hasan Meets the Promised Husayn. In *Baha'i Stories Blog*.

MLA:
Various. "Shaykh Hasan Meets the Promised Husayn." *Baha'i Stories Blog*, n.d..

Chicago:
Various. "Shaykh Hasan Meets the Promised Husayn." In *Baha'i Stories Blog*, n.d..