BibTeX:
@incollection{Various,
  author = {Various},
  title = {“At such a time, a firm believer is known!" – a story told by ‘Abdu’l-Baha},
  booktitle = {Baha'i Stories Blog},
  url = {https://bahaistories.blogspot.com/2025/02/at-such-time-firm-believer-is-known.html},
}

APA:
Various. “At such a time, a firm believer is known!" – a story told by ‘Abdu’l-Baha. In *Baha'i Stories Blog*.

MLA:
Various. "“At such a time, a firm believer is known!" – a story told by ‘Abdu’l-Baha." *Baha'i Stories Blog*, n.d..

Chicago:
Various. "“At such a time, a firm believer is known!" – a story told by ‘Abdu’l-Baha." In *Baha'i Stories Blog*, n.d..