BibTeX:
@incollection{Various,
  author = {Various},
  title = {‘Abdu’l-Bahá and the Expensive Coat},
  booktitle = {Baha'i Stories Blog},
  url = {https://bahaistories.blogspot.com/2023/01/trying-to-get-abdul-baha-new-coat.html},
}

APA:
Various. ‘Abdu’l-Bahá and the Expensive Coat. In *Baha'i Stories Blog*.

MLA:
Various. "‘Abdu’l-Bahá and the Expensive Coat." *Baha'i Stories Blog*, n.d..

Chicago:
Various. "‘Abdu’l-Bahá and the Expensive Coat." In *Baha'i Stories Blog*, n.d..