BibTeX:
@incollection{Various,
  author = {Various},
  title = {Mullá Ḥusayn, the First to Believe},
  booktitle = {Baha'i Stories for Children},
  url = {https://bahaistoriesforchildren.blogspot.com/2024/07/shining-lamp-mulla-husayn.html},
}

APA:
Various. Mullá Ḥusayn, the First to Believe. In *Baha'i Stories for Children*.

MLA:
Various. "Mullá Ḥusayn, the First to Believe." *Baha'i Stories for Children*, n.d..

Chicago:
Various. "Mullá Ḥusayn, the First to Believe." In *Baha'i Stories for Children*, n.d..